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---
title: "Terms starting with letter b"
layout: base
---
<p class=legend>Color key: <code class=webidl>WebIDL</code> <code class='css'>CSS</code> <code class='markup'>Markup</code> <code class='http'>HTTP</code></p>
<dl>
<dt id="b@@html%%element"><code class=prefix></code><span><strong><code class=markup>b</code></strong> (<em>markup element</em>) <a class='self-link' href='#b%40%40html%25%25element' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-b-element>HTML</a></strong> </dd>
<dd>Referenced in
<a href=https://w3c.github.io/contentEditable/ title='b is referenced by ContentEditable'>ContentEditable</a>,
<a href=https://w3c.github.io/editing/docs/execCommand/ title='b is referenced by execCommand'>execCommand</a>,
<a href=https://w3c.github.io/html-aam/ title='b is referenced by HTML Accessibility API Mappings 1.0'>HTML Accessibility API Mappings 1.0</a>,
<a href=https://w3c.github.io/html-aria/ title='b is referenced by ARIA in HTML'>ARIA in HTML</a>,
<a href=https://w3c.github.io/webvtt/ title='b is referenced by WebVTT: The Web Video Text Tracks Format'>WebVTT: The Web Video Text Tracks Format</a></dd>
<dt id="b@@rgb()@value"><code class=prefix></code><span><strong><code class=css>b</code></strong> (<em>CSS value for <a href='r.html#rgb()@@css-color%25%25function'><code>rgb()</code></a> </em>) <a class='self-link' href='#b%40%40rgb()%40value' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Color 5'><a href=https://drafts.csswg.org/css-color-5/#valdef-rgb-b>CSS Color 5</a></strong> </dd>
<dt id="b@@hwb()@value"><code class=prefix></code><span><strong><code class=css>b</code></strong> (<em>CSS value for <a href='h.html#hwb()@@css-color%25%25function'><code>hwb()</code></a> </em>) <a class='self-link' href='#b%40%40hwb()%40value' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Color 5'><a href=https://drafts.csswg.org/css-color-5/#valdef-hwb-b>CSS Color 5</a></strong> </dd>
<dt id="b@@lab()@value"><code class=prefix></code><span><strong><code class=css>b</code></strong> (<em>CSS value for <a href='l.html#lab()@@css-color%25%25function'><code>lab()</code></a> </em>) <a class='self-link' href='#b%40%40lab()%40value' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Color 5'><a href=https://drafts.csswg.org/css-color-5/#valdef-lab-b>CSS Color 5</a></strong> </dd>
<dt id="b@@oklab()@value"><code class=prefix></code><span><strong><code class=css>b</code></strong> (<em>CSS value for <a href='o.html#oklab()@@css-color%25%25function'><code>oklab()</code></a> </em>) <a class='self-link' href='#b%40%40oklab()%40value' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Color 5'><a href=https://drafts.csswg.org/css-color-5/#valdef-oklab-b>CSS Color 5</a></strong> </dd>
<dt id="b@@color()@value"><code class=prefix></code><span><strong><code class=css>b</code></strong> (<em>CSS value for <a href='c.html#color()@@css-color%25%25function'><code>color()</code></a> </em>) <a class='self-link' href='#b%40%40color()%40value' aria-label="Permalink for b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Color 5'><a href=https://drafts.csswg.org/css-color-5/#valdef-color-b>CSS Color 5</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css2/ title='b is referenced by CSS 2.2'>CSS 2.2</a></dd>
<dt id="b@@CSSHWB@attribute"><code class=prefix><a href='c.html#CSSHWB@@@@interface'>CSSHWB</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40CSSHWB%40attribute' aria-label="Permalink for <a href='c.html#CSSHWB@@@@interface'>CSSHWB</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Typed OM 1'><a href=https://drafts.css-houdini.org/css-typed-om-1/#dom-csshwb-b>CSS Typed OM 1</a></strong> </dd>
<dt id="b@@CSSLab@attribute"><code class=prefix><a href='c.html#CSSLab@@@@interface'>CSSLab</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40CSSLab%40attribute' aria-label="Permalink for <a href='c.html#CSSLab@@@@interface'>CSSLab</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Typed OM 1'><a href=https://drafts.css-houdini.org/css-typed-om-1/#dom-csslab-b>CSS Typed OM 1</a></strong> </dd>
<dt id="b@@CSSOKLab@attribute"><code class=prefix><a href='c.html#CSSOKLab@@@@interface'>CSSOKLab</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40CSSOKLab%40attribute' aria-label="Permalink for <a href='c.html#CSSOKLab@@@@interface'>CSSOKLab</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Typed OM 1'><a href=https://drafts.css-houdini.org/css-typed-om-1/#dom-cssoklab-b>CSS Typed OM 1</a></strong> </dd>
<dt id="b@@CSSRGB@attribute"><code class=prefix><a href='c.html#CSSRGB@@@@interface'>CSSRGB</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40CSSRGB%40attribute' aria-label="Permalink for <a href='c.html#CSSRGB@@@@interface'>CSSRGB</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in CSS Typed OM 1'><a href=https://drafts.css-houdini.org/css-typed-om-1/#dom-cssrgb-b>CSS Typed OM 1</a></strong> </dd>
<dt id="b@@DOMMatrix@attribute"><code class=prefix><a href='d.html#DOMMatrix@@@@interface'>DOMMatrix</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40DOMMatrix%40attribute' aria-label="Permalink for <a href='d.html#DOMMatrix@@@@interface'>DOMMatrix</a>.b">§</a></span></dt>
<dt><code class=prefix><a href='d.html#DOMMatrixReadOnly@@@@interface'>DOMMatrixReadOnly</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#b%40%40DOMMatrix%40attribute' aria-label="Permalink for <a href='d.html#DOMMatrixReadOnly@@@@interface'>DOMMatrixReadOnly</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in Geometry Interfaces 1'><a href=https://drafts.fxtf.org/geometry-1/#dom-dommatrixreadonly-b>Geometry Interfaces 1</a></strong> </dd>
<dt id="b@@DOMMatrix2DInit@dict-member"><code class=prefix><a href='d.html#DOMMatrix2DInit@@@@dictionary'>DOMMatrix2DInit</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#b%40%40DOMMatrix2DInit%40dict-member' aria-label="Permalink for <a href='d.html#DOMMatrix2DInit@@@@dictionary'>DOMMatrix2DInit</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in Geometry Interfaces 1'><a href=https://drafts.fxtf.org/geometry-1/#dom-dommatrix2dinit-b>Geometry Interfaces 1</a></strong> </dd>
<dt id="b@@GPUColorDict@dict-member"><code class=prefix><a href='g.html#GPUColorDict@@@@dictionary'>GPUColorDict</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#b%40%40GPUColorDict%40dict-member' aria-label="Permalink for <a href='g.html#GPUColorDict@@@@dictionary'>GPUColorDict</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in WebGPU'><a href=https://gpuweb.github.io/gpuweb/#dom-gpucolordict-b>WebGPU</a></strong> </dd>
<dt id="b@@MLBinarySupportLimits@dict-member"><code class=prefix><a href='m.html#MLBinarySupportLimits@@@@dictionary'>MLBinarySupportLimits</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#b%40%40MLBinarySupportLimits%40dict-member' aria-label="Permalink for <a href='m.html#MLBinarySupportLimits@@@@dictionary'>MLBinarySupportLimits</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in Web Neural Network API'><a href=https://webmachinelearning.github.io/webnn/#dom-mlbinarysupportlimits-b>Web Neural Network API</a></strong> </dd>
<dt id="b@@MLGemmSupportLimits@dict-member"><code class=prefix><a href='m.html#MLGemmSupportLimits@@@@dictionary'>MLGemmSupportLimits</a>.</code><span><strong><code class=webidl>b</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#b%40%40MLGemmSupportLimits%40dict-member' aria-label="Permalink for <a href='m.html#MLGemmSupportLimits@@@@dictionary'>MLGemmSupportLimits</a>.b">§</a></span></dt>
<dd>Defined in <strong title='b is defined in Web Neural Network API'><a href=https://webmachinelearning.github.io/webnn/#dom-mlgemmsupportlimits-b>Web Neural Network API</a></strong> </dd>
<dt id="B4@@<page-size>@value"><code class=prefix></code><span><strong><code class=css>B4</code></strong> (<em>CSS value for <a href='p.html#<page-size>@@@page/size@type'><code><page-size></code></a> </em>) <a class='self-link' href='#B4%40%40%3Cpage-size%3E%40value' aria-label="Permalink for B4">§</a></span></dt>
<dd>Defined in <strong title='B4 is defined in CSS Paged Media 3'><a href=https://drafts.csswg.org/css-page-3/#valdef-page-size-b4>CSS Paged Media 3</a></strong> </dd>
<dt id="B5@@<page-size>@value"><code class=prefix></code><span><strong><code class=css>B5</code></strong> (<em>CSS value for <a href='p.html#<page-size>@@@page/size@type'><code><page-size></code></a> </em>) <a class='self-link' href='#B5%40%40%3Cpage-size%3E%40value' aria-label="Permalink for B5">§</a></span></dt>
<dd>Defined in <strong title='B5 is defined in CSS Paged Media 3'><a href=https://drafts.csswg.org/css-page-3/#valdef-page-size-b5>CSS Paged Media 3</a></strong> </dd>
<dt id="babble@@USBTransferStatus@enum-value"><code class=prefix></code><span><strong><code class=webidl>"babble"</code></strong> (<em>value for <a href='u.html#USBTransferStatus@@@@enum'><code>USBTransferStatus</code></a> WebIDL enumeration</em>) <a class='self-link' href='#babble%40%40USBTransferStatus%40enum-value' aria-label="Permalink for babble">§</a></span></dt>
<dd>Defined in <strong title='babble is defined in WebUSB API'><a href=https://wicg.github.io/webusb/#dom-usbtransferstatus-babble>WebUSB API</a></strong> </dd>
<dt id="back@@@media/nav-controls@value"><code class=prefix></code><span><strong><code class=css>back</code></strong> (<em>CSS value for <a href='n.html#nav-controls@@@media@descriptor'><code>nav-controls</code></a> descriptor of <a href='m.html#@media@@@@at-rule'><code>@media</code></a> @rule </em>) <a class='self-link' href='#back%40%40%40media%2Fnav-controls%40value' aria-label="Permalink for back">§</a></span></dt>
<dd>Defined in <strong title='back is defined in Media Queries 5'><a href=https://drafts.csswg.org/mediaqueries-5/#valdef-media-nav-controls-back>Media Queries 5</a></strong> </dd>
<dt id="back@@GPUCullMode@enum-value"><code class=prefix></code><span><strong><code class=webidl>"back"</code></strong> (<em>value for <a href='g.html#GPUCullMode@@@@enum'><code>GPUCullMode</code></a> WebIDL enumeration</em>) <a class='self-link' href='#back%40%40GPUCullMode%40enum-value' aria-label="Permalink for back">§</a></span></dt>
<dd>Defined in <strong title='back is defined in WebGPU'><a href=https://gpuweb.github.io/gpuweb/#dom-gpucullmode-back>WebGPU</a></strong> </dd>
<dt id="back_forward@@NavigationTimingType@enum-value"><code class=prefix></code><span><strong><code class=webidl>"back_forward"</code></strong> (<em>value for <a href='n.html#NavigationTimingType@@@@enum'><code>NavigationTimingType</code></a> WebIDL enumeration</em>) <a class='self-link' href='#back_forward%40%40NavigationTimingType%40enum-value' aria-label="Permalink for back_forward">§</a></span></dt>
<dd>Defined in <strong title='back_forward is defined in Navigation Timing 2'><a href=https://w3c.github.io/navigation-timing/#dom-navigationtimingtype-back_forward>Navigation Timing 2</a></strong> </dd>
<dd>Referenced in
<a href=https://html.spec.whatwg.org/multipage/ title='back_forward is referenced by HTML'>HTML</a></dd>
<dt id="back()@@History@method"><code class=prefix><a href='h.html#History@@@@interface'>History</a>.</code><span><strong><code class=webidl>back()</code></strong> (<em>WebIDL operation</em>) <a class='self-link' href='#back()%40%40History%40method' aria-label="Permalink for <a href='h.html#History@@@@interface'>History</a>.back()">§</a></span></dt>
<dd>Defined in <strong title='back() is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-history-back>HTML</a></strong> </dd>
<dt id="back(options)@@Navigation@method"><code class=prefix><a href='n.html#Navigation@@@@interface'>Navigation</a>.</code><span><strong><code class=webidl>back(options)</code></strong> (<em>WebIDL operation</em>) <a class='self-link' href='#back(options)%40%40Navigation%40method' aria-label="Permalink for <a href='n.html#Navigation@@@@interface'>Navigation</a>.back(options)">§</a></span></dt>
<dd>Defined in <strong title='back(options) is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigation-back>HTML</a></strong> </dd>
<dt id="::backdrop@@@@selector"><code class=prefix></code><span><strong><code class=css>::backdrop</code></strong> (<em>CSS selector</em>) <a class='self-link' href='#%3A%3Abackdrop%40%40%40%40selector' aria-label="Permalink for ::backdrop">§</a></span></dt>
<dd>Defined in <strong title='::backdrop is defined in CSS Positioned Layout 4'><a href=https://drafts.csswg.org/css-position-4/#selectordef-backdrop>CSS Positioned Layout 4</a></strong> </dd>
<dd>Referenced in
<a href=https://fullscreen.spec.whatwg.org/ title='::backdrop is referenced by Fullscreen API'>Fullscreen API</a>,
<a href=https://drafts.csswg.org/css-conditional-5/ title='::backdrop is referenced by CSS Conditional 5'>CSS Conditional 5</a></dd>
<dt id="backdrop@@compositing%%dfn"><code class=prefix></code><span><strong>backdrop</strong> (<em>concept</em>) <a class='self-link' href='#backdrop%40%40compositing%25%25dfn' aria-label="Permalink for backdrop">§</a></span></dt>
<dd>Defined in <strong title='backdrop is defined in Compositing 2'><a href=https://drafts.fxtf.org/compositing-2/#backdrop>Compositing 2</a></strong> , <strong title='backdrop is defined in Compositing 1'><a href=https://drafts.fxtf.org/compositing-1/#backdrop>Compositing 1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='backdrop is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='backdrop is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.fxtf.org/filter-effects-1/ title='backdrop is referenced by Filter Effects 1'>Filter Effects 1</a></dd>
<dt id="Backdrop Root@@filter-effects%%dfn"><code class=prefix></code><span><strong>Backdrop Root</strong> (<em>concept</em>) <a class='self-link' href='#Backdrop%20Root%40%40filter-effects%25%25dfn' aria-label="Permalink for Backdrop Root">§</a></span></dt>
<dd>Defined in <strong title='Backdrop Root is defined in Filter Effects 2'><a href=https://drafts.fxtf.org/filter-effects-2/#backdrop-root>Filter Effects 2</a></strong> </dd>
<dd>Referenced in
<a href=https://screen-share.github.io/element-capture/ title='Backdrop Root is referenced by Element Capture'>Element Capture</a>,
<a href=https://drafts.csswg.org/css-view-transitions-1/ title='Backdrop Root is referenced by CSS View Transitions 1'>CSS View Transitions 1</a>,
<a href=https://immersive-web.github.io/dom-overlays/ title='Backdrop Root is referenced by WebXR DOM Overlays'>WebXR DOM Overlays</a></dd>
<dt id="backdrop-filter@@@@property"><code class=prefix></code><span><strong><code class=css>backdrop-filter</code></strong> (<em>CSS property</em>) <a class='self-link' href='#backdrop-filter%40%40%40%40property' aria-label="Permalink for backdrop-filter">§</a></span></dt>
<dd>Defined in <strong title='backdrop-filter is defined in Filter Effects 2'><a href=https://drafts.fxtf.org/filter-effects-2/#propdef-backdrop-filter>Filter Effects 2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='backdrop-filter is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-view-transitions-1/ title='backdrop-filter is referenced by CSS View Transitions 1'>CSS View Transitions 1</a></dd>
<dt id="backface-visibility@@@@property"><code class=prefix></code><span><strong><code class=css>backface-visibility</code></strong> (<em>CSS property</em>) <a class='self-link' href='#backface-visibility%40%40%40%40property' aria-label="Permalink for backface-visibility">§</a></span></dt>
<dd>Defined in <strong title='backface-visibility is defined in CSS Transforms 2'><a href=https://drafts.csswg.org/css-transforms-2/#propdef-backface-visibility>CSS Transforms 2</a></strong> </dd>
<dd>Referenced in
<a href=https://compat.spec.whatwg.org/ title='backface-visibility is referenced by Compatibility'>Compatibility</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='backface-visibility is referenced by CSS Typed OM 1'>CSS Typed OM 1</a></dd>
<dt id="background@@html%%element-attr"><code class=prefix></code><span><strong><code class=markup>background</code></strong> (<em>markup attribute</em>) <a class='self-link' href='#background%40%40html%25%25element-attr' aria-label="Permalink for background">§</a></span></dt>
<dd>Defined in <strong title='background is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/obsolete.html#attr-background>HTML</a></strong> </dd>
<dt id="background@@TaskPriority@enum-value"><code class=prefix></code><span><strong><code class=webidl>"background"</code></strong> (<em>value for <a href='t.html#TaskPriority@@@@enum'><code>TaskPriority</code></a> WebIDL enumeration</em>) <a class='self-link' href='#background%40%40TaskPriority%40enum-value' aria-label="Permalink for background">§</a></span></dt>
<dd>Defined in <strong title='background is defined in Prioritized Task Scheduling'><a href=https://wicg.github.io/scheduling-apis/#dom-taskpriority-background>Prioritized Task Scheduling</a></strong> </dd>
<dt id="background@@@@property"><code class=prefix></code><span><strong><code class=css>background</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background%40%40%40%40property' aria-label="Permalink for background">§</a></span></dt>
<dd>Defined in <strong title='background is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background>CSS Backgrounds 3</a></strong> , <strong title='background is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background>CSS 2.1</a></strong> , <strong title='background is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-backgrounds-4/ title='background is referenced by CSS Backgrounds 4'>CSS Backgrounds 4</a>,
<a href=https://drafts.csswg.org/css-forms-1/ title='background is referenced by CSS Form Styling 1'>CSS Form Styling 1</a>,
<a href=https://drafts.csswg.org/css-variables-2/ title='background is referenced by CSS Variables 2'>CSS Variables 2</a>,
<a href=https://drafts.fxtf.org/compositing-2/ title='background is referenced by Compositing 2'>Compositing 2</a>,
<a href=https://drafts.fxtf.org/compositing-1/ title='background is referenced by Compositing 1'>Compositing 1</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-box-4/ title='background is referenced by CSS Box Model 4'>CSS Box Model 4</a>,
<a href=https://drafts.csswg.org/css-cascade-3/ title='background is referenced by CSS Cascading 3'>CSS Cascading 3</a>,
<a href=https://drafts.csswg.org/css-cascade-4/ title='background is referenced by CSS Cascading 4'>CSS Cascading 4</a>,
<a href=https://drafts.csswg.org/css-cascade-5/ title='background is referenced by CSS Cascading 5'>CSS Cascading 5</a>,
<a href=https://drafts.csswg.org/css-color-4/ title='background is referenced by CSS Color 4'>CSS Color 4</a>,
<a href=https://drafts.csswg.org/css-contain-1/ title='background is referenced by CSS Containment 1'>CSS Containment 1</a>,
<a href=https://drafts.csswg.org/css-contain-2/ title='background is referenced by CSS Containment 2'>CSS Containment 2</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.csswg.org/css-nesting-1/ title='background is referenced by CSS Nesting'>CSS Nesting</a>,
<a href=https://drafts.csswg.org/css-tables-3/ title='background is referenced by CSS Table 3'>CSS Table 3</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-values-3/ title='background is referenced by CSS Values 3'>CSS Values 3</a>,
<a href=https://drafts.csswg.org/css-values-4/ title='background is referenced by CSS Values 4'>CSS Values 4</a>,
<a href=https://drafts.csswg.org/css-variables-1/ title='background is referenced by CSS Variables 1'>CSS Variables 1</a>,
<a href=https://drafts.csswg.org/css-will-change-1/ title='background is referenced by CSS Will Change 1'>CSS Will Change 1</a>,
<a href=https://w3c.github.io/webvtt/ title='background is referenced by WebVTT: The Web Video Text Tracks Format'>WebVTT: The Web Video Text Tracks Format</a></dd>
<dt id="Background@@<color>@value"><code class=prefix></code><span><strong><code class=css>Background</code></strong> (<em>CSS value for <a href='c.html#<color>@@@@type'><code><color></code></a>, <a href='d.html#<deprecated-color>@@@@type'><code><deprecated-color></code></a> type </em>) <a class='self-link' href='#Background%40%40%3Ccolor%3E%40value' aria-label="Permalink for Background">§</a></span></dt>
<dd>Defined in <strong title='Background is defined in CSS Color 4'><a href=https://drafts.csswg.org/css-color-4/#valdef-color-background>CSS Color 4</a></strong> </dd>
<dt id="background@@HTMLBodyElement@attribute"><code class=prefix><a href='h.html#HTMLBodyElement@@@@interface'>HTMLBodyElement</a>.</code><span><strong><code class=webidl>background</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#background%40%40HTMLBodyElement%40attribute' aria-label="Permalink for <a href='h.html#HTMLBodyElement@@@@interface'>HTMLBodyElement</a>.background">§</a></span></dt>
<dd>Defined in <strong title='background is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/obsolete.html#dom-body-background>HTML</a></strong> </dd>
<dt id="Background@@css-color%%dfn"><code class=prefix></code><span><strong>Background</strong> (<em>concept</em>) <a class='self-link' href='#Background%40%40css-color%25%25dfn' aria-label="Permalink for Background">§</a></span></dt>
<dd>Defined in <strong title='Background is defined in CSS Color 3'><a href=https://drafts.csswg.org/css-color-3/#background>CSS Color 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='Background is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='Background is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="background color@@css-backgrounds%%dfn"><code class=prefix></code><span><strong>background color</strong> (<em>concept</em>) <a class='self-link' href='#background%20color%40%40css-backgrounds%25%25dfn' aria-label="Permalink for background color">§</a></span></dt>
<dd>Defined in <strong title='background color is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#background-color-layer>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background color is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background color is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="background image@@css-backgrounds%%dfn"><code class=prefix></code><span><strong>background image</strong> (<em>concept</em>) <a class='self-link' href='#background%20image%40%40css-backgrounds%25%25dfn' aria-label="Permalink for background image">§</a></span></dt>
<dd>Defined in <strong title='background image is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#background-images>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-backgrounds-4/ title='background image is referenced by CSS Backgrounds 4'>CSS Backgrounds 4</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background image is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background image is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="background image layer@@css-backgrounds%%dfn"><code class=prefix></code><span><strong>background image layer</strong> (<em>concept</em>) <a class='self-link' href='#background%20image%20layer%40%40css-backgrounds%25%25dfn' aria-label="Permalink for background image layer">§</a></span></dt>
<dd>Defined in <strong title='background image layer is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#background-image-layer>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background image layer is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background image layer is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="background painting area@@css-backgrounds%%dfn"><code class=prefix></code><span><strong>background painting area</strong> (<em>concept</em>) <a class='self-link' href='#background%20painting%20area%40%40css-backgrounds%25%25dfn' aria-label="Permalink for background painting area">§</a></span></dt>
<dd>Defined in <strong title='background painting area is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#background-painting-area>CSS Backgrounds 4</a></strong> , <strong title='background painting area is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#background-painting-area>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background painting area is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background painting area is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-overflow-3/ title='background painting area is referenced by CSS Overflow 3'>CSS Overflow 3</a>,
<a href=https://drafts.csswg.org/css-page-3/ title='background painting area is referenced by CSS Paged Media 3'>CSS Paged Media 3</a></dd>
<dt id="background positioning area@@css-backgrounds%%dfn"><code class=prefix></code><span><strong>background positioning area</strong> (<em>concept</em>) <a class='self-link' href='#background%20positioning%20area%40%40css-backgrounds%25%25dfn' aria-label="Permalink for background positioning area">§</a></span></dt>
<dd>Defined in <strong title='background positioning area is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#background-positioning-area>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-backgrounds-4/ title='background positioning area is referenced by CSS Backgrounds 4'>CSS Backgrounds 4</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background positioning area is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background positioning area is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-break-3/ title='background positioning area is referenced by CSS Fragmentation 3'>CSS Fragmentation 3</a>,
<a href=https://drafts.csswg.org/css-break-4/ title='background positioning area is referenced by CSS Fragmentation 4'>CSS Fragmentation 4</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background positioning area is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.csswg.org/css-overflow-3/ title='background positioning area is referenced by CSS Overflow 3'>CSS Overflow 3</a>,
<a href=https://drafts.csswg.org/css-page-3/ title='background positioning area is referenced by CSS Paged Media 3'>CSS Paged Media 3</a>,
<a href=https://drafts.csswg.org/css-values-5/ title='background positioning area is referenced by CSS Values 5'>CSS Values 5</a></dd>
<dt id="background_color@@manifest@dfn"><code class=prefix></code><span><strong>background_color</strong> (<em>concept for <a href='m.html#manifest@@appmanifest%25%25dfn'>manifest</a> </em>) <a class='self-link' href='#background_color%40%40manifest%40dfn' aria-label="Permalink for background_color">§</a></span></dt>
<dd>Defined in <strong title='background_color is defined in Web Application Manifest'><a href=https://w3c.github.io/manifest/#dfn-background_color>Web Application Manifest</a></strong> </dd>
<dt id="background_color@@IdentityProviderBranding@dict-member"><code class=prefix><a href='i.html#IdentityProviderBranding@@@@dictionary'>IdentityProviderBranding</a>.</code><span><strong><code class=webidl>background_color</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#background_color%40%40IdentityProviderBranding%40dict-member' aria-label="Permalink for <a href='i.html#IdentityProviderBranding@@@@dictionary'>IdentityProviderBranding</a>.background_color">§</a></span></dt>
<dd>Defined in <strong title='background_color is defined in Federated Credential Management API'><a href=https://w3c-fedid.github.io/FedCM/#dom-identityproviderbranding-background_color>Federated Credential Management API</a></strong> </dd>
<dt id="background-attachment@@@@property"><code class=prefix></code><span><strong><code class=css>background-attachment</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-attachment%40%40%40%40property' aria-label="Permalink for background-attachment">§</a></span></dt>
<dd>Defined in <strong title='background-attachment is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-attachment>CSS Backgrounds 3</a></strong> , <strong title='background-attachment is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background-attachment>CSS 2.1</a></strong> , <strong title='background-attachment is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background-attachment>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background-attachment is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-attachment is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-page-3/ title='background-attachment is referenced by CSS Paged Media 3'>CSS Paged Media 3</a>,
<a href=https://drafts.csswg.org/css-position-3/ title='background-attachment is referenced by CSS Positioned Layout 3'>CSS Positioned Layout 3</a>,
<a href=https://drafts.csswg.org/css-transforms-1/ title='background-attachment is referenced by CSS Transforms 1'>CSS Transforms 1</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-attachment is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-attachment is referenced by CSS User Interface 4'>CSS User Interface 4</a>,
<a href=https://drafts.csswg.org/css-values-3/ title='background-attachment is referenced by CSS Values 3'>CSS Values 3</a>,
<a href=https://drafts.csswg.org/css-values-4/ title='background-attachment is referenced by CSS Values 4'>CSS Values 4</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='f.html#fixed@@background-attachment@value'><code>fixed</code></a>, <em>CSS value</em> <a href='l.html#local@@background-attachment@value'><code>local</code></a>, <em>CSS value</em> <a href='s.html#scroll@@background-attachment@value'><code>scroll</code></a></dd>
<dt id="background-blend-mode@@@@property"><code class=prefix></code><span><strong><code class=css>background-blend-mode</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-blend-mode%40%40%40%40property' aria-label="Permalink for background-blend-mode">§</a></span></dt>
<dd>Defined in <strong title='background-blend-mode is defined in Compositing 2'><a href=https://drafts.fxtf.org/compositing-2/#propdef-background-blend-mode>Compositing 2</a></strong> , <strong title='background-blend-mode is defined in Compositing 1'><a href=https://drafts.fxtf.org/compositing-1/#propdef-background-blend-mode>Compositing 1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background-blend-mode is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-blend-mode is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-blend-mode is referenced by CSS Typed OM 1'>CSS Typed OM 1</a></dd>
<dt id="background-clip@@@@property"><code class=prefix></code><span><strong><code class=css>background-clip</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-clip%40%40%40%40property' aria-label="Permalink for background-clip">§</a></span></dt>
<dd>Defined in <strong title='background-clip is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-clip>CSS Backgrounds 4</a></strong> , <strong title='background-clip is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-clip>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://compat.spec.whatwg.org/ title='background-clip is referenced by Compatibility'>Compatibility</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background-clip is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-clip is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-box-4/ title='background-clip is referenced by CSS Box Model 4'>CSS Box Model 4</a>,
<a href=https://drafts.csswg.org/css-page-3/ title='background-clip is referenced by CSS Paged Media 3'>CSS Paged Media 3</a>,
<a href=https://drafts.csswg.org/css-shapes-1/ title='background-clip is referenced by CSS Shapes 1'>CSS Shapes 1</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-clip is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-clip is referenced by CSS User Interface 4'>CSS User Interface 4</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='b.html#border-area@@<bg-clip>@value'><code>border-area</code></a>, <em>CSS value</em> <a href='b.html#border-box@@background-clip@value'><code>border-box</code></a>, <em>CSS value</em> <a href='c.html#content-box@@background-clip@value'><code>content-box</code></a>, <em>CSS value</em> <a href='p.html#padding-box@@background-clip@value'><code>padding-box</code></a>, <em>CSS value</em> <a href='t.html#text@@<bg-clip>@value'><code>text</code></a></dd>
<dt id="background-color@@@@property"><code class=prefix></code><span><strong><code class=css>background-color</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-color%40%40%40%40property' aria-label="Permalink for background-color">§</a></span></dt>
<dd>Defined in <strong title='background-color is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-color>CSS Backgrounds 3</a></strong> , <strong title='background-color is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background-color>CSS 2.1</a></strong> , <strong title='background-color is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background-color>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-backgrounds-4/ title='background-color is referenced by CSS Backgrounds 4'>CSS Backgrounds 4</a>,
<a href=https://drafts.csswg.org/css-variables-2/ title='background-color is referenced by CSS Variables 2'>CSS Variables 2</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background-color is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-color is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-cascade-3/ title='background-color is referenced by CSS Cascading 3'>CSS Cascading 3</a>,
<a href=https://drafts.csswg.org/css-cascade-4/ title='background-color is referenced by CSS Cascading 4'>CSS Cascading 4</a>,
<a href=https://drafts.csswg.org/css-cascade-5/ title='background-color is referenced by CSS Cascading 5'>CSS Cascading 5</a>,
<a href=https://drafts.csswg.org/css-color-4/ title='background-color is referenced by CSS Color 4'>CSS Color 4</a>,
<a href=https://drafts.csswg.org/css-color-adjust-1/ title='background-color is referenced by CSS Color Adjustment 1'>CSS Color Adjustment 1</a>,
<a href=https://drafts.csswg.org/css-pseudo-4/ title='background-color is referenced by CSS Pseudo-Elements 4'>CSS Pseudo-Elements 4</a>,
<a href=https://drafts.csswg.org/css-transitions-1/ title='background-color is referenced by CSS Transitions'>CSS Transitions</a>,
<a href=https://drafts.csswg.org/css-transitions-2/ title='background-color is referenced by CSS Transitions 2'>CSS Transitions 2</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-color is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-color is referenced by CSS User Interface 4'>CSS User Interface 4</a>,
<a href=https://drafts.csswg.org/css-variables-1/ title='background-color is referenced by CSS Variables 1'>CSS Variables 1</a>,
<a href=https://drafts.csswg.org/cssom-1/ title='background-color is referenced by CSSOM'>CSSOM</a>,
<a href=https://w3c.github.io/webvtt/ title='background-color is referenced by WebVTT: The Web Video Text Tracks Format'>WebVTT: The Web Video Text Tracks Format</a></dd>
<dt id="background-image@@@@property"><code class=prefix></code><span><strong><code class=css>background-image</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-image%40%40%40%40property' aria-label="Permalink for background-image">§</a></span></dt>
<dd>Defined in <strong title='background-image is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-image>CSS Backgrounds 3</a></strong> , <strong title='background-image is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background-image>CSS 2.1</a></strong> , <strong title='background-image is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background-image>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.fxtf.org/compositing-2/ title='background-image is referenced by Compositing 2'>Compositing 2</a>,
<a href=https://drafts.fxtf.org/compositing-1/ title='background-image is referenced by Compositing 1'>Compositing 1</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background-image is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-image is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-cascade-3/ title='background-image is referenced by CSS Cascading 3'>CSS Cascading 3</a>,
<a href=https://drafts.csswg.org/css-cascade-4/ title='background-image is referenced by CSS Cascading 4'>CSS Cascading 4</a>,
<a href=https://drafts.csswg.org/css-cascade-5/ title='background-image is referenced by CSS Cascading 5'>CSS Cascading 5</a>,
<a href=https://drafts.csswg.org/css-color-adjust-1/ title='background-image is referenced by CSS Color Adjustment 1'>CSS Color Adjustment 1</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background-image is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.csswg.org/css-transitions-1/ title='background-image is referenced by CSS Transitions'>CSS Transitions</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-image is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-image is referenced by CSS User Interface 4'>CSS User Interface 4</a>,
<a href=https://drafts.csswg.org/css-values-4/ title='background-image is referenced by CSS Values 4'>CSS Values 4</a>,
<a href=https://drafts.csswg.org/css-values-5/ title='background-image is referenced by CSS Values 5'>CSS Values 5</a>,
<a href=https://w3c.github.io/webappsec-mixed-content/ title='background-image is referenced by Mixed Content'>Mixed Content</a>,
<a href=https://drafts.csswg.org/web-animations-1/ title='background-image is referenced by Web Animations'>Web Animations</a>,
<a href=https://w3c.github.io/webvtt/ title='background-image is referenced by WebVTT: The Web Video Text Tracks Format'>WebVTT: The Web Video Text Tracks Format</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#none@@background-image@value'><code>none</code></a>, <em>CSS value</em> <a href='u.html#<uri>@@background-image@value'><code><uri></code></a></dd>
<dt id="background-origin@@@@property"><code class=prefix></code><span><strong><code class=css>background-origin</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-origin%40%40%40%40property' aria-label="Permalink for background-origin">§</a></span></dt>
<dd>Defined in <strong title='background-origin is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-origin>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://compat.spec.whatwg.org/ title='background-origin is referenced by Compatibility'>Compatibility</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background-origin is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-origin is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-box-4/ title='background-origin is referenced by CSS Box Model 4'>CSS Box Model 4</a>,
<a href=https://drafts.csswg.org/css-page-3/ title='background-origin is referenced by CSS Paged Media 3'>CSS Paged Media 3</a>,
<a href=https://drafts.csswg.org/css-tables-3/ title='background-origin is referenced by CSS Table 3'>CSS Table 3</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-origin is referenced by CSS User Interface 4'>CSS User Interface 4</a>,
<a href=https://drafts.csswg.org/web-animations-1/ title='background-origin is referenced by Web Animations'>Web Animations</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='b.html#border-box@@background-origin@value'><code>border-box</code></a>, <em>CSS value</em> <a href='c.html#content-box@@background-origin@value'><code>content-box</code></a>, <em>CSS value</em> <a href='p.html#padding-box@@background-origin@value'><code>padding-box</code></a></dd>
<dt id="background-position@@@@property"><code class=prefix></code><span><strong><code class=css>background-position</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-position%40%40%40%40property' aria-label="Permalink for background-position">§</a></span></dt>
<dd>Defined in <strong title='background-position is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position>CSS Backgrounds 4</a></strong> , <strong title='background-position is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-position>CSS Backgrounds 3</a></strong> , <strong title='background-position is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background-position>CSS 2.1</a></strong> , <strong title='background-position is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background-position>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background-position is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-position is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background-position is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.csswg.org/css-transforms-1/ title='background-position is referenced by CSS Transforms 1'>CSS Transforms 1</a>,
<a href=https://drafts.csswg.org/css-transforms-2/ title='background-position is referenced by CSS Transforms 2'>CSS Transforms 2</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-position is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-position is referenced by CSS User Interface 4'>CSS User Interface 4</a>,
<a href=https://drafts.csswg.org/css-values-3/ title='background-position is referenced by CSS Values 3'>CSS Values 3</a>,
<a href=https://drafts.csswg.org/css-values-4/ title='background-position is referenced by CSS Values 4'>CSS Values 4</a>,
<a href=https://drafts.csswg.org/css-values-5/ title='background-position is referenced by CSS Values 5'>CSS Values 5</a>,
<a href=https://drafts.csswg.org/css-values-5/ title='background-position is referenced by CSS Values 5'>CSS Values 5</a>,
<a href=https://w3c.github.io/largest-contentful-paint/ title='background-position is referenced by Largest Contentful Paint'>Largest Contentful Paint</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='b.html#bottom@@background-position@value'><code>bottom</code></a>, <em>CSS value</em> <a href='c.html#center@@background-position@value'><code>center</code></a>, <em>CSS value</em> <a href='l.html#left@@background-position@value'><code>left</code></a>, <em>CSS value</em> <a href='r.html#right@@background-position@value'><code>right</code></a>, <em>CSS value</em> <a href='t.html#top@@background-position@value'><code>top</code></a></dd>
<dt id="background-position-block@@@@property"><code class=prefix></code><span><strong><code class=css>background-position-block</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-position-block%40%40%40%40property' aria-label="Permalink for background-position-block">§</a></span></dt>
<dd>Defined in <strong title='background-position-block is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position-block>CSS Backgrounds 4</a></strong> </dd>
<dt id="background-position-inline@@@@property"><code class=prefix></code><span><strong><code class=css>background-position-inline</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-position-inline%40%40%40%40property' aria-label="Permalink for background-position-inline">§</a></span></dt>
<dd>Defined in <strong title='background-position-inline is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position-inline>CSS Backgrounds 4</a></strong> </dd>
<dt id="background-position-x@@@@property"><code class=prefix></code><span><strong><code class=css>background-position-x</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-position-x%40%40%40%40property' aria-label="Permalink for background-position-x">§</a></span></dt>
<dd>Defined in <strong title='background-position-x is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position-x>CSS Backgrounds 4</a></strong> </dd>
<dt id="background-position-y@@@@property"><code class=prefix></code><span><strong><code class=css>background-position-y</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-position-y%40%40%40%40property' aria-label="Permalink for background-position-y">§</a></span></dt>
<dd>Defined in <strong title='background-position-y is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-position-y>CSS Backgrounds 4</a></strong> </dd>
<dt id="background-repeat@@@@property"><code class=prefix></code><span><strong><code class=css>background-repeat</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-repeat%40%40%40%40property' aria-label="Permalink for background-repeat">§</a></span></dt>
<dd>Defined in <strong title='background-repeat is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-repeat>CSS Backgrounds 4</a></strong> , <strong title='background-repeat is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-repeat>CSS Backgrounds 3</a></strong> , <strong title='background-repeat is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/colors.html#propdef-background-repeat>CSS 2.1</a></strong> , <strong title='background-repeat is defined in CSS 2.2'><a href=https://drafts.csswg.org/css2/#propdef-background-repeat>CSS 2.2</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='background-repeat is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-repeat is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background-repeat is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='background-repeat is referenced by CSS Typed OM 1'>CSS Typed OM 1</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#no-repeat@@background-repeat@value'><code>no-repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat@@background-repeat@value'><code>repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat-x@@background-repeat@value'><code>repeat-x</code></a>, <em>CSS value</em> <a href='r.html#repeat-y@@background-repeat@value'><code>repeat-y</code></a>, <em>CSS value</em> <a href='r.html#round@@background-repeat@value'><code>round</code></a>, <em>CSS value</em> <a href='s.html#space@@background-repeat@value'><code>space</code></a></dd>
<dt id="background-repeat-block@@@@property"><code class=prefix></code><span><strong><code class=css>background-repeat-block</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-repeat-block%40%40%40%40property' aria-label="Permalink for background-repeat-block">§</a></span></dt>
<dd>Defined in <strong title='background-repeat-block is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-repeat-block>CSS Backgrounds 4</a></strong> </dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#no-repeat@@background-repeat-block@value'><code>no-repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat@@background-repeat-block@value'><code>repeat</code></a>, <em>CSS value</em> <a href='r.html#round@@background-repeat-block@value'><code>round</code></a>, <em>CSS value</em> <a href='s.html#space@@background-repeat-block@value'><code>space</code></a></dd>
<dt id="background-repeat-inline@@@@property"><code class=prefix></code><span><strong><code class=css>background-repeat-inline</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-repeat-inline%40%40%40%40property' aria-label="Permalink for background-repeat-inline">§</a></span></dt>
<dd>Defined in <strong title='background-repeat-inline is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-repeat-inline>CSS Backgrounds 4</a></strong> </dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#no-repeat@@background-repeat-block@value'><code>no-repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat@@background-repeat-block@value'><code>repeat</code></a>, <em>CSS value</em> <a href='r.html#round@@background-repeat-block@value'><code>round</code></a>, <em>CSS value</em> <a href='s.html#space@@background-repeat-block@value'><code>space</code></a></dd>
<dt id="background-repeat-x@@@@property"><code class=prefix></code><span><strong><code class=css>background-repeat-x</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-repeat-x%40%40%40%40property' aria-label="Permalink for background-repeat-x">§</a></span></dt>
<dd>Defined in <strong title='background-repeat-x is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-repeat-x>CSS Backgrounds 4</a></strong> </dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#no-repeat@@background-repeat-block@value'><code>no-repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat@@background-repeat-block@value'><code>repeat</code></a>, <em>CSS value</em> <a href='r.html#round@@background-repeat-block@value'><code>round</code></a>, <em>CSS value</em> <a href='s.html#space@@background-repeat-block@value'><code>space</code></a></dd>
<dt id="background-repeat-y@@@@property"><code class=prefix></code><span><strong><code class=css>background-repeat-y</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-repeat-y%40%40%40%40property' aria-label="Permalink for background-repeat-y">§</a></span></dt>
<dd>Defined in <strong title='background-repeat-y is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-repeat-y>CSS Backgrounds 4</a></strong> </dd>
<dd>Related terms: <em>CSS value</em> <a href='n.html#no-repeat@@background-repeat-block@value'><code>no-repeat</code></a>, <em>CSS value</em> <a href='r.html#repeat@@background-repeat-block@value'><code>repeat</code></a>, <em>CSS value</em> <a href='r.html#round@@background-repeat-block@value'><code>round</code></a>, <em>CSS value</em> <a href='s.html#space@@background-repeat-block@value'><code>space</code></a></dd>
<dt id="background-size@@@@property"><code class=prefix></code><span><strong><code class=css>background-size</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-size%40%40%40%40property' aria-label="Permalink for background-size">§</a></span></dt>
<dd>Defined in <strong title='background-size is defined in CSS Backgrounds 3'><a href=https://drafts.csswg.org/css-backgrounds-3/#propdef-background-size>CSS Backgrounds 3</a></strong> </dd>
<dd>Referenced in
<a href=https://compat.spec.whatwg.org/ title='background-size is referenced by Compatibility'>Compatibility</a>,
<a href=https://drafts.csswg.org/css-backgrounds-4/ title='background-size is referenced by CSS Backgrounds 4'>CSS Backgrounds 4</a>,
<a href=https://drafts.csswg.org/css-2022/ title='background-size is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='background-size is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-images-3/ title='background-size is referenced by CSS Images 3'>CSS Images 3</a>,
<a href=https://drafts.csswg.org/css-sizing-4/ title='background-size is referenced by CSS Sizing 4'>CSS Sizing 4</a>,
<a href=https://drafts.csswg.org/css-tables-3/ title='background-size is referenced by CSS Table 3'>CSS Table 3</a>,
<a href=https://drafts.csswg.org/css-ui-4/ title='background-size is referenced by CSS User Interface 4'>CSS User Interface 4</a></dd>
<dd>Related terms: <em>CSS value</em> <a href='a.html#auto@@background-size@value'><code>auto</code></a>, <em>CSS value</em> <a href='c.html#contain@@background-size@value'><code>contain</code></a>, <em>CSS value</em> <a href='c.html#cover@@background-size@value'><code>cover</code></a></dd>
<dt id="background-tbd@@@@property"><code class=prefix></code><span><strong><code class=css>background-tbd</code></strong> (<em>CSS property</em>) <a class='self-link' href='#background-tbd%40%40%40%40property' aria-label="Permalink for background-tbd">§</a></span></dt>
<dd>Defined in <strong title='background-tbd is defined in CSS Backgrounds 4'><a href=https://drafts.csswg.org/css-backgrounds-4/#propdef-background-tbd>CSS Backgrounds 4</a></strong> </dd>
<dt id="background-work@@html%%dfn"><code class=prefix></code><span><strong>background-work</strong> (<em>concept</em>) <a class='self-link' href='#background-work%40%40html%25%25dfn' aria-label="Permalink for background-work">§</a></span></dt>
<dd>Defined in <strong title='background-work is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/nav-history-apis.html#blocking-background-work>HTML</a></strong> </dd>
<dt id="BackgroundAlpha@@in@attr-value"><code class=prefix></code><span><strong><code class=markup>BackgroundAlpha</code></strong> (<em>value for <code>in</code> </em>) <a class='self-link' href='#BackgroundAlpha%40%40in%40attr-value' aria-label="Permalink for BackgroundAlpha">§</a></span></dt>
<dd>Defined in <strong title='BackgroundAlpha is defined in Filter Effects 1'><a href=https://drafts.fxtf.org/filter-effects-1/#attr-valuedef-in-backgroundalpha>Filter Effects 1</a></strong> </dd>
<dt id="backgroundBlur@@MediaTrackCapabilities@dict-member"><code class=prefix><a href='m.html#MediaTrackCapabilities@@@@dictionary'>MediaTrackCapabilities</a>.</code><span><strong><code class=webidl>backgroundBlur</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#backgroundBlur%40%40MediaTrackCapabilities%40dict-member' aria-label="Permalink for <a href='m.html#MediaTrackCapabilities@@@@dictionary'>MediaTrackCapabilities</a>.backgroundBlur">§</a></span></dt>
<dd>Defined in <strong title='backgroundBlur is defined in Media Capture and Streams'><a href=https://w3c.github.io/mediacapture-main/#dom-mediatrackcapabilities-backgroundblur>Media Capture and Streams</a></strong> </dd>
<dt id="backgroundBlur@@MediaTrackConstraintSet@dict-member"><code class=prefix><a href='m.html#MediaTrackConstraintSet@@@@dictionary'>MediaTrackConstraintSet</a>.</code><span><strong><code class=webidl>backgroundBlur</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#backgroundBlur%40%40MediaTrackConstraintSet%40dict-member' aria-label="Permalink for <a href='m.html#MediaTrackConstraintSet@@@@dictionary'>MediaTrackConstraintSet</a>.backgroundBlur">§</a></span></dt>
<dd>Defined in <strong title='backgroundBlur is defined in Media Capture and Streams'><a href=https://w3c.github.io/mediacapture-main/#dom-mediatrackconstraintset-backgroundblur>Media Capture and Streams</a></strong> </dd>
<dt id="backgroundBlur@@MediaTrackSettings@dict-member"><code class=prefix><a href='m.html#MediaTrackSettings@@@@dictionary'>MediaTrackSettings</a>.</code><span><strong><code class=webidl>backgroundBlur</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#backgroundBlur%40%40MediaTrackSettings%40dict-member' aria-label="Permalink for <a href='m.html#MediaTrackSettings@@@@dictionary'>MediaTrackSettings</a>.backgroundBlur">§</a></span></dt>
<dd>Defined in <strong title='backgroundBlur is defined in Media Capture and Streams'><a href=https://w3c.github.io/mediacapture-main/#dom-mediatracksettings-backgroundblur>Media Capture and Streams</a></strong> </dd>
<dt id="backgroundBlur@@MediaTrackSupportedConstraints@dict-member"><code class=prefix><a href='m.html#MediaTrackSupportedConstraints@@@@dictionary'>MediaTrackSupportedConstraints</a>.</code><span><strong><code class=webidl>backgroundBlur</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#backgroundBlur%40%40MediaTrackSupportedConstraints%40dict-member' aria-label="Permalink for <a href='m.html#MediaTrackSupportedConstraints@@@@dictionary'>MediaTrackSupportedConstraints</a>.backgroundBlur">§</a></span></dt>
<dd>Defined in <strong title='backgroundBlur is defined in Media Capture and Streams'><a href=https://w3c.github.io/mediacapture-main/#dom-mediatracksupportedconstraints-backgroundblur>Media Capture and Streams</a></strong> </dd>
<dt id="backgroundFetch@@ServiceWorkerRegistration@attribute"><code class=prefix><a href='s.html#ServiceWorkerRegistration@@@@interface'>ServiceWorkerRegistration</a>.</code><span><strong><code class=webidl>backgroundFetch</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#backgroundFetch%40%40ServiceWorkerRegistration%40attribute' aria-label="Permalink for <a href='s.html#ServiceWorkerRegistration@@@@interface'>ServiceWorkerRegistration</a>.backgroundFetch">§</a></span></dt>
<dd>Defined in <strong title='backgroundFetch is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dom-serviceworkerregistration-backgroundfetch>Background Fetch</a></strong> </dd>
<dt id="backgroundfetchabort@@ServiceWorkerGlobalScope@event"><code class=prefix></code><span><strong><code class=webidl>backgroundfetchabort</code></strong> (<em>event for <a href='s.html#ServiceWorkerGlobalScope@@@@interface'><code>ServiceWorkerGlobalScope</code></a> </em>) <a class='self-link' href='#backgroundfetchabort%40%40ServiceWorkerGlobalScope%40event' aria-label="Permalink for backgroundfetchabort">§</a></span></dt>
<dd>Defined in <strong title='backgroundfetchabort is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#eventdef-serviceworkerglobalscope-backgroundfetchabort>Background Fetch</a></strong> </dd>
<dt id="backgroundfetchclick@@ServiceWorkerGlobalScope@event"><code class=prefix></code><span><strong><code class=webidl>backgroundfetchclick</code></strong> (<em>event for <a href='s.html#ServiceWorkerGlobalScope@@@@interface'><code>ServiceWorkerGlobalScope</code></a> </em>) <a class='self-link' href='#backgroundfetchclick%40%40ServiceWorkerGlobalScope%40event' aria-label="Permalink for backgroundfetchclick">§</a></span></dt>
<dd>Defined in <strong title='backgroundfetchclick is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#eventdef-serviceworkerglobalscope-backgroundfetchclick>Background Fetch</a></strong> </dd>
<dt id="BackgroundFetchEvent@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchEvent</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BackgroundFetchEvent%40%40%40%40interface' aria-label="Permalink for BackgroundFetchEvent">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchEvent is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#backgroundfetchevent>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchEvent.</code><a href='r.html#registration@@BackgroundFetchEvent@attribute'><code>registration</code></a>, <code>new </code><a href='b.html#BackgroundFetchEvent(type, init)@@BackgroundFetchEvent@constructor'><code>BackgroundFetchEvent(type, init)</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchEvent.html' title='BackgroundFetchEvent entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchEvent(type, init)@@BackgroundFetchEvent@constructor"><code class=prefix>new </code><span><strong><code class=webidl>BackgroundFetchEvent(type, init)</code></strong> (<em>WebIDL constructor</em>) <a class='self-link' href='#BackgroundFetchEvent(type%2C%20init)%40%40BackgroundFetchEvent%40constructor' aria-label="Permalink for new BackgroundFetchEvent(type, init)">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchEvent(type, init) is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dom-backgroundfetchevent-backgroundfetchevent>Background Fetch</a></strong> </dd>
<dt id="BackgroundFetchEventInit@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchEventInit</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BackgroundFetchEventInit%40%40%40%40dictionary' aria-label="Permalink for BackgroundFetchEventInit">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchEventInit is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dictdef-backgroundfetcheventinit>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchEventInit.</code><a href='r.html#registration@@BackgroundFetchEventInit@dict-member'><code>registration</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchEventInit.html' title='BackgroundFetchEventInit entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="backgroundfetchfail@@ServiceWorkerGlobalScope@event"><code class=prefix></code><span><strong><code class=webidl>backgroundfetchfail</code></strong> (<em>event for <a href='s.html#ServiceWorkerGlobalScope@@@@interface'><code>ServiceWorkerGlobalScope</code></a> </em>) <a class='self-link' href='#backgroundfetchfail%40%40ServiceWorkerGlobalScope%40event' aria-label="Permalink for backgroundfetchfail">§</a></span></dt>
<dd>Defined in <strong title='backgroundfetchfail is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#eventdef-serviceworkerglobalscope-backgroundfetchfail>Background Fetch</a></strong> </dd>
<dt id="BackgroundFetchFailureReason@@@@enum"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchFailureReason</code></strong> (<em>WebIDL enumeration</em>) <a class='self-link' href='#BackgroundFetchFailureReason%40%40%40%40enum' aria-label="Permalink for BackgroundFetchFailureReason">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchFailureReason is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#enumdef-backgroundfetchfailurereason>Background Fetch</a></strong> </dd>
<dd>Related terms: <em>value</em> <a href='other.html#@@BackgroundFetchFailureReason@enum-value'><code></code></a>, <em>value</em> <a href='a.html#aborted@@BackgroundFetchFailureReason@enum-value'><code>aborted</code></a>, <em>value</em> <a href='b.html#bad-status@@BackgroundFetchFailureReason@enum-value'><code>bad-status</code></a>, <em>value</em> <a href='d.html#download-total-exceeded@@BackgroundFetchFailureReason@enum-value'><code>download-total-exceeded</code></a>, <em>value</em> <a href='f.html#fetch-error@@BackgroundFetchFailureReason@enum-value'><code>fetch-error</code></a>, <em>value</em> <a href='q.html#quota-exceeded@@BackgroundFetchFailureReason@enum-value'><code>quota-exceeded</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchFailureReason.html' title='BackgroundFetchFailureReason entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchManager@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchManager</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BackgroundFetchManager%40%40%40%40interface' aria-label="Permalink for BackgroundFetchManager">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchManager is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#backgroundfetchmanager>Background Fetch</a></strong> </dd>
<dd>Referenced in
<a href=https://html.spec.whatwg.org/multipage/ title='BackgroundFetchManager is referenced by HTML'>HTML</a>,
<a href=https://wicg.github.io/periodic-background-sync/ title='BackgroundFetchManager is referenced by Web Periodic Background Synchronization'>Web Periodic Background Synchronization</a></dd>
<dd>Related terms: <code>BackgroundFetchManager.</code><a href='f.html#fetch(id, requests, options)@@BackgroundFetchManager@method'><code>fetch(id, requests, options)</code></a>, <code>BackgroundFetchManager.</code><a href='g.html#get(id)@@BackgroundFetchManager@method'><code>get(id)</code></a>, <code>BackgroundFetchManager.</code><a href='g.html#getIds()@@BackgroundFetchManager@method'><code>getIds()</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchManager.html' title='BackgroundFetchManager entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchOptions@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchOptions</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BackgroundFetchOptions%40%40%40%40dictionary' aria-label="Permalink for BackgroundFetchOptions">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchOptions is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dictdef-backgroundfetchoptions>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchOptions.</code><a href='d.html#downloadTotal@@BackgroundFetchOptions@dict-member'><code>downloadTotal</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchOptions.html' title='BackgroundFetchOptions entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchRecord@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchRecord</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BackgroundFetchRecord%40%40%40%40interface' aria-label="Permalink for BackgroundFetchRecord">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchRecord is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#backgroundfetchrecord>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchRecord.</code><a href='r.html#request@@BackgroundFetchRecord@attribute'><code>request</code></a>, <code>BackgroundFetchRecord.</code><a href='r.html#responseReady@@BackgroundFetchRecord@attribute'><code>responseReady</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchRecord.html' title='BackgroundFetchRecord entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchRegistration@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchRegistration</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BackgroundFetchRegistration%40%40%40%40interface' aria-label="Permalink for BackgroundFetchRegistration">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchRegistration is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#backgroundfetchregistration>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchRegistration.</code><a href='d.html#downloaded@@BackgroundFetchRegistration@attribute'><code>downloaded</code></a>, <code>BackgroundFetchRegistration.</code><a href='d.html#downloadTotal@@BackgroundFetchRegistration@attribute'><code>downloadTotal</code></a>, <code>BackgroundFetchRegistration.</code><a href='f.html#failureReason@@BackgroundFetchRegistration@attribute'><code>failureReason</code></a>, <code>BackgroundFetchRegistration.</code><a href='i.html#id@@BackgroundFetchRegistration@attribute'><code>id</code></a>, <code>BackgroundFetchRegistration.</code><a href='o.html#onprogress@@BackgroundFetchRegistration@attribute'><code>onprogress</code></a>, <code>BackgroundFetchRegistration.</code><a href='r.html#recordsAvailable@@BackgroundFetchRegistration@attribute'><code>recordsAvailable</code></a>, <code>BackgroundFetchRegistration.</code><a href='r.html#result@@BackgroundFetchRegistration@attribute'><code>result</code></a>, <code>BackgroundFetchRegistration.</code><a href='u.html#uploaded@@BackgroundFetchRegistration@attribute'><code>uploaded</code></a>, <code>BackgroundFetchRegistration.</code><a href='u.html#uploadTotal@@BackgroundFetchRegistration@attribute'><code>uploadTotal</code></a>, <em>event</em> <a href='p.html#progress@@BackgroundFetchRegistration@event'><code>progress</code></a>, <code>BackgroundFetchRegistration.</code><a href='a.html#abort()@@BackgroundFetchRegistration@method'><code>abort()</code></a>, <code>BackgroundFetchRegistration.</code><a href='m.html#match(request, options)@@BackgroundFetchRegistration@method'><code>match(request, options)</code></a>, <code>BackgroundFetchRegistration.</code><a href='m.html#matchAll(request, options)@@BackgroundFetchRegistration@method'><code>matchAll(request, options)</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchRegistration.html' title='BackgroundFetchRegistration entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchResult@@@@enum"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchResult</code></strong> (<em>WebIDL enumeration</em>) <a class='self-link' href='#BackgroundFetchResult%40%40%40%40enum' aria-label="Permalink for BackgroundFetchResult">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchResult is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#enumdef-backgroundfetchresult>Background Fetch</a></strong> </dd>
<dd>Related terms: <em>value</em> <a href='other.html#@@BackgroundFetchResult@enum-value'><code></code></a>, <em>value</em> <a href='f.html#failure@@BackgroundFetchResult@enum-value'><code>failure</code></a>, <em>value</em> <a href='s.html#success@@BackgroundFetchResult@enum-value'><code>success</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchResult.html' title='BackgroundFetchResult entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="backgroundfetchsuccess@@ServiceWorkerGlobalScope@event"><code class=prefix></code><span><strong><code class=webidl>backgroundfetchsuccess</code></strong> (<em>event for <a href='s.html#ServiceWorkerGlobalScope@@@@interface'><code>ServiceWorkerGlobalScope</code></a> </em>) <a class='self-link' href='#backgroundfetchsuccess%40%40ServiceWorkerGlobalScope%40event' aria-label="Permalink for backgroundfetchsuccess">§</a></span></dt>
<dd>Defined in <strong title='backgroundfetchsuccess is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#eventdef-serviceworkerglobalscope-backgroundfetchsuccess>Background Fetch</a></strong> </dd>
<dt id="BackgroundFetchUIOptions@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchUIOptions</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BackgroundFetchUIOptions%40%40%40%40dictionary' aria-label="Permalink for BackgroundFetchUIOptions">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchUIOptions is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dictdef-backgroundfetchuioptions>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>BackgroundFetchUIOptions.</code><a href='i.html#icons@@BackgroundFetchUIOptions@dict-member'><code>icons</code></a>, <code>BackgroundFetchUIOptions.</code><a href='t.html#title@@BackgroundFetchUIOptions@dict-member'><code>title</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchUIOptions.html' title='BackgroundFetchUIOptions entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchUpdateUIEvent@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BackgroundFetchUpdateUIEvent</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BackgroundFetchUpdateUIEvent%40%40%40%40interface' aria-label="Permalink for BackgroundFetchUpdateUIEvent">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchUpdateUIEvent is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#backgroundfetchupdateuievent>Background Fetch</a></strong> </dd>
<dd>Related terms: <code>new </code><a href='b.html#BackgroundFetchUpdateUIEvent(type, init)@@BackgroundFetchUpdateUIEvent@constructor'><code>BackgroundFetchUpdateUIEvent(type, init)</code></a>, <code>BackgroundFetchUpdateUIEvent.</code><a href='u.html#updateUI(options)@@BackgroundFetchUpdateUIEvent@method'><code>updateUI(options)</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundFetchUpdateUIEvent.html' title='BackgroundFetchUpdateUIEvent entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BackgroundFetchUpdateUIEvent(type, init)@@BackgroundFetchUpdateUIEvent@constructor"><code class=prefix>new </code><span><strong><code class=webidl>BackgroundFetchUpdateUIEvent(type, init)</code></strong> (<em>WebIDL constructor</em>) <a class='self-link' href='#BackgroundFetchUpdateUIEvent(type%2C%20init)%40%40BackgroundFetchUpdateUIEvent%40constructor' aria-label="Permalink for new BackgroundFetchUpdateUIEvent(type, init)">§</a></span></dt>
<dd>Defined in <strong title='BackgroundFetchUpdateUIEvent(type, init) is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dom-backgroundfetchupdateuievent-backgroundfetchupdateuievent>Background Fetch</a></strong> </dd>
<dt id="BackgroundImage@@in@attr-value"><code class=prefix></code><span><strong><code class=markup>BackgroundImage</code></strong> (<em>value for <code>in</code> </em>) <a class='self-link' href='#BackgroundImage%40%40in%40attr-value' aria-label="Permalink for BackgroundImage">§</a></span></dt>
<dd>Defined in <strong title='BackgroundImage is defined in Filter Effects 1'><a href=https://drafts.fxtf.org/filter-effects-1/#attr-valuedef-in-backgroundimage>Filter Effects 1</a></strong> </dd>
<dt id="BackgroundSyncOptions@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BackgroundSyncOptions</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BackgroundSyncOptions%40%40%40%40dictionary' aria-label="Permalink for BackgroundSyncOptions">§</a></span></dt>
<dd>Defined in <strong title='BackgroundSyncOptions is defined in Web Periodic Background Synchronization'><a href=https://wicg.github.io/periodic-background-sync/#dictdef-backgroundsyncoptions>Web Periodic Background Synchronization</a></strong> </dd>
<dd>Related terms: <code>BackgroundSyncOptions.</code><a href='m.html#minInterval@@BackgroundSyncOptions@dict-member'><code>minInterval</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BackgroundSyncOptions.html' title='BackgroundSyncOptions entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="backing list@@observable array attribute@dfn"><code class=prefix></code><span><strong>backing list</strong> (<em>concept for <code>observable array attribute</code> </em>) <a class='self-link' href='#backing%20list%40%40observable%20array%20attribute%40dfn' aria-label="Permalink for backing list">§</a></span></dt>
<dd>Defined in <strong title='backing list is defined in Web IDL'><a href=https://webidl.spec.whatwg.org/#observable-array-attribute-backing-list>Web IDL</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.css-houdini.org/css-typed-om-1/ title='backing list is referenced by CSS Typed OM 1'>CSS Typed OM 1</a>,
<a href=https://drafts.csswg.org/cssom-1/ title='backing list is referenced by CSSOM'>CSSOM</a></dd>
<dt id="[[BackingMap]]@@BluetoothManufacturerDataMap@attribute"><code class=prefix><a href='b.html#BluetoothManufacturerDataMap@@@@interface'>BluetoothManufacturerDataMap</a>.</code><span><strong><code class=webidl>[[BackingMap]]</code></strong> (<em>internal slot</em>) <a class='self-link' href='#%5B%5BBackingMap%5D%5D%40%40BluetoothManufacturerDataMap%40attribute' aria-label="Permalink for <a href='b.html#BluetoothManufacturerDataMap@@@@interface'>BluetoothManufacturerDataMap</a>.[[BackingMap]]">§</a></span></dt>
<dd>Defined in <strong title='[[BackingMap]] is defined in Web Bluetooth'><a href=https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothmanufacturerdatamap-backingmap-slot>Web Bluetooth</a></strong> </dd>
<dt id="[[BackingMap]]@@BluetoothServiceDataMap@attribute"><code class=prefix><a href='b.html#BluetoothServiceDataMap@@@@interface'>BluetoothServiceDataMap</a>.</code><span><strong><code class=webidl>[[BackingMap]]</code></strong> (<em>internal slot</em>) <a class='self-link' href='#%5B%5BBackingMap%5D%5D%40%40BluetoothServiceDataMap%40attribute' aria-label="Permalink for <a href='b.html#BluetoothServiceDataMap@@@@interface'>BluetoothServiceDataMap</a>.[[BackingMap]]">§</a></span></dt>
<dd>Defined in <strong title='[[BackingMap]] is defined in Web Bluetooth'><a href=https://webbluetoothcg.github.io/web-bluetooth/#dom-bluetoothservicedatamap-backingmap-slot>Web Bluetooth</a></strong> </dd>
<dt id="backlog@@TCPServerSocketOptions@dict-member"><code class=prefix><a href='t.html#TCPServerSocketOptions@@@@dictionary'>TCPServerSocketOptions</a>.</code><span><strong><code class=webidl>backlog</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#backlog%40%40TCPServerSocketOptions%40dict-member' aria-label="Permalink for <a href='t.html#TCPServerSocketOptions@@@@dictionary'>TCPServerSocketOptions</a>.backlog">§</a></span></dt>
<dd>Defined in <strong title='backlog is defined in Direct Sockets API'><a href=https://wicg.github.io/direct-sockets/#dom-tcpserversocketoptions-backlog>Direct Sockets API</a></strong> </dd>
<dt id="BackreferenceMatcher@@ecmascript%%abstract-op"><code class=prefix></code><span><strong><code class=concept>BackreferenceMatcher</code></strong> (<em>algorithm</em>) <a class='self-link' href='#BackreferenceMatcher%40%40ecmascript%25%25abstract-op' aria-label="Permalink for BackreferenceMatcher">§</a></span></dt>
<dd>Defined in <strong title='BackreferenceMatcher is defined in ECMAScript'><a href=https://tc39.es/ecma262/multipage/text-processing.html#sec-backreference-matcher>ECMAScript</a></strong> </dd>
<dt id="backslash escapes@@CSS%%dfn"><code class=prefix></code><span><strong>backslash escapes</strong> (<em>concept</em>) <a class='self-link' href='#backslash%20escapes%40%40CSS%25%25dfn' aria-label="Permalink for backslash escapes">§</a></span></dt>
<dd>Defined in <strong title='backslash escapes is defined in CSS 2.1'><a href=https://www.w3.org/TR/CSS21/syndata.html#escaped-characters>CSS 2.1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='backslash escapes is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='backslash escapes is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="backupEligible@@credential record@abstract-op"><code class=prefix></code><span><strong><code class=concept>backupEligible</code></strong> (<em>algorithm for <code>credential record</code> </em>) <a class='self-link' href='#backupEligible%40%40credential%20record%40abstract-op' aria-label="Permalink for backupEligible">§</a></span></dt>
<dd>Defined in <strong title='backupEligible is defined in Web Authentication'><a href=https://w3c.github.io/webauthn/#abstract-opdef-credential-record-backupeligible>Web Authentication</a></strong> </dd>
<dt id="backupState@@credential record@abstract-op"><code class=prefix></code><span><strong><code class=concept>backupState</code></strong> (<em>algorithm for <code>credential record</code> </em>) <a class='self-link' href='#backupState%40%40credential%20record%40abstract-op' aria-label="Permalink for backupState">§</a></span></dt>
<dd>Defined in <strong title='backupState is defined in Web Authentication'><a href=https://w3c.github.io/webauthn/#abstract-opdef-credential-record-backupstate>Web Authentication</a></strong> </dd>
<dt id="backward@@MLRecurrentNetworkDirection@enum-value"><code class=prefix></code><span><strong><code class=webidl>"backward"</code></strong> (<em>value for <a href='m.html#MLRecurrentNetworkDirection@@@@enum'><code>MLRecurrentNetworkDirection</code></a> WebIDL enumeration</em>) <a class='self-link' href='#backward%40%40MLRecurrentNetworkDirection%40enum-value' aria-label="Permalink for backward">§</a></span></dt>
<dd>Defined in <strong title='backward is defined in Web Neural Network API'><a href=https://webmachinelearning.github.io/webnn/#dom-mlrecurrentnetworkdirection-backward>Web Neural Network API</a></strong> </dd>
<dt id="backwards@@animation-fill-mode@value"><code class=prefix></code><span><strong><code class=css>backwards</code></strong> (<em>CSS value for <a href='a.html#animation-fill-mode@@@@property'><code>animation-fill-mode</code></a> </em>) <a class='self-link' href='#backwards%40%40animation-fill-mode%40value' aria-label="Permalink for backwards">§</a></span></dt>
<dd>Defined in <strong title='backwards is defined in CSS Animations 1'><a href=https://drafts.csswg.org/css-animations-1/#valdef-animation-fill-mode-backwards>CSS Animations 1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='backwards is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='backwards is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a>,
<a href=https://drafts.csswg.org/css-animations-2/ title='backwards is referenced by CSS Animations 2'>CSS Animations 2</a></dd>
<dt id="backwards@@FillMode@enum-value"><code class=prefix></code><span><strong><code class=webidl>"backwards"</code></strong> (<em>value for <a href='f.html#FillMode@@@@enum'><code>FillMode</code></a>, <a href='p.html#PlaybackDirection@@@@enum'><code>PlaybackDirection</code></a> enumeration WebIDL enumerations</em>) <a class='self-link' href='#backwards%40%40FillMode%40enum-value' aria-label="Permalink for backwards">§</a></span></dt>
<dd>Defined in <strong title='backwards is defined in Web Animations'><a href=https://drafts.csswg.org/web-animations-1/#dom-fillmode-backwards>Web Animations</a></strong> , <strong title='backwards is defined in Web Animations 2'><a href=https://drafts.csswg.org/web-animations-2/#dom-fillmode-backwards>Web Animations 2</a></strong> </dd>
<dt id="bad port@@fetch%%dfn"><code class=prefix></code><span><strong>bad port</strong> (<em>concept</em>) <a class='self-link' href='#bad%20port%40%40fetch%25%25dfn' aria-label="Permalink for bad port">§</a></span></dt>
<dd>Defined in <strong title='bad port is defined in Fetch'><a href=https://fetch.spec.whatwg.org/#bad-port>Fetch</a></strong> </dd>
<dt id="bad-grammar@@SpeechRecognitionErrorCode@enum-value"><code class=prefix></code><span><strong><code class=webidl>"bad-grammar"</code></strong> (<em>value for <a href='s.html#SpeechRecognitionErrorCode@@@@enum'><code>SpeechRecognitionErrorCode</code></a> WebIDL enumeration</em>) <a class='self-link' href='#bad-grammar%40%40SpeechRecognitionErrorCode%40enum-value' aria-label="Permalink for bad-grammar">§</a></span></dt>
<dd>Defined in <strong title='bad-grammar is defined in Web Speech API'><a href=https://wicg.github.io/speech-api/#dom-speechrecognitionerrorcode-bad-grammar>Web Speech API</a></strong> </dd>
<dt id="bad-status@@BackgroundFetchFailureReason@enum-value"><code class=prefix></code><span><strong><code class=webidl>"bad-status"</code></strong> (<em>value for <a href='b.html#BackgroundFetchFailureReason@@@@enum'><code>BackgroundFetchFailureReason</code></a> WebIDL enumeration</em>) <a class='self-link' href='#bad-status%40%40BackgroundFetchFailureReason%40enum-value' aria-label="Permalink for bad-status">§</a></span></dt>
<dd>Defined in <strong title='bad-status is defined in Background Fetch'><a href=https://wicg.github.io/background-fetch/#dom-backgroundfetchfailurereason-bad-status>Background Fetch</a></strong> </dd>
<dt id="<bad-string-token>@@@@type"><code class=prefix></code><span><strong><code class=css><bad-string-token></code></strong> (<em>CSS type</em>) <a class='self-link' href='#%3Cbad-string-token%3E%40%40%40%40type' aria-label="Permalink for <bad-string-token>">§</a></span></dt>
<dd>Defined in <strong title='<bad-string-token> is defined in CSS Syntax 3'><a href=https://drafts.csswg.org/css-syntax-3/#typedef-bad-string-token>CSS Syntax 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-variables-2/ title='<bad-string-token> is referenced by CSS Variables 2'>CSS Variables 2</a>,
<a href=https://drafts.csswg.org/css-variables-1/ title='<bad-string-token> is referenced by CSS Variables 1'>CSS Variables 1</a></dd>
<dt id="<bad-url-token>@@@@type"><code class=prefix></code><span><strong><code class=css><bad-url-token></code></strong> (<em>CSS type</em>) <a class='self-link' href='#%3Cbad-url-token%3E%40%40%40%40type' aria-label="Permalink for <bad-url-token>">§</a></span></dt>
<dd>Defined in <strong title='<bad-url-token> is defined in CSS Syntax 3'><a href=https://drafts.csswg.org/css-syntax-3/#typedef-bad-url-token>CSS Syntax 3</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-variables-2/ title='<bad-url-token> is referenced by CSS Variables 2'>CSS Variables 2</a>,
<a href=https://drafts.csswg.org/css-variables-1/ title='<bad-url-token> is referenced by CSS Variables 1'>CSS Variables 1</a></dd>
<dt id="badge@@Notification@attribute"><code class=prefix><a href='n.html#Notification@@@@interface'>Notification</a>.</code><span><strong><code class=webidl>badge</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#badge%40%40Notification%40attribute' aria-label="Permalink for <a href='n.html#Notification@@@@interface'>Notification</a>.badge">§</a></span></dt>
<dd>Defined in <strong title='badge is defined in Notifications API'><a href=https://notifications.spec.whatwg.org/#dom-notification-badge>Notifications API</a></strong> </dd>
<dt id="badge@@NotificationOptions@dict-member"><code class=prefix><a href='n.html#NotificationOptions@@@@dictionary'>NotificationOptions</a>.</code><span><strong><code class=webidl>badge</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#badge%40%40NotificationOptions%40dict-member' aria-label="Permalink for <a href='n.html#NotificationOptions@@@@dictionary'>NotificationOptions</a>.badge">§</a></span></dt>
<dd>Defined in <strong title='badge is defined in Notifications API'><a href=https://notifications.spec.whatwg.org/#dom-notificationoptions-badge>Notifications API</a></strong> </dd>
<dt id="badInput@@ValidityState@attribute"><code class=prefix><a href='v.html#ValidityState@@@@interface'>ValidityState</a>.</code><span><strong><code class=webidl>badInput</code></strong> (<em>WebIDL attribute</em>) <a class='self-link' href='#badInput%40%40ValidityState%40attribute' aria-label="Permalink for <a href='v.html#ValidityState@@@@interface'>ValidityState</a>.badInput">§</a></span></dt>
<dd>Defined in <strong title='badInput is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-validitystate-badinput>HTML</a></strong> </dd>
<dt id="balance@@column-fill@value"><code class=prefix></code><span><strong><code class=css>balance</code></strong> (<em>CSS value for <a href='c.html#column-fill@@@@property'><code>column-fill</code></a> </em>) <a class='self-link' href='#balance%40%40column-fill%40value' aria-label="Permalink for balance">§</a></span></dt>
<dd>Defined in <strong title='balance is defined in CSS Multicol 1'><a href=https://drafts.csswg.org/css-multicol-1/#valdef-column-fill-balance>CSS Multicol 1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='balance is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='balance is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="balance@@text-wrap-style@value"><code class=prefix></code><span><strong><code class=css>balance</code></strong> (<em>CSS value for <a href='t.html#text-wrap-style@@@@property'><code>text-wrap-style</code></a> </em>) <a class='self-link' href='#balance%40%40text-wrap-style%40value' aria-label="Permalink for balance">§</a></span></dt>
<dd>Defined in <strong title='balance is defined in CSS Text 4'><a href=https://drafts.csswg.org/css-text-4/#valdef-text-wrap-style-balance>CSS Text 4</a></strong> </dd>
<dt id="balance-all@@column-fill@value"><code class=prefix></code><span><strong><code class=css>balance-all</code></strong> (<em>CSS value for <a href='c.html#column-fill@@@@property'><code>column-fill</code></a> </em>) <a class='self-link' href='#balance-all%40%40column-fill%40value' aria-label="Permalink for balance-all">§</a></span></dt>
<dd>Defined in <strong title='balance-all is defined in CSS Multicol 1'><a href=https://drafts.csswg.org/css-multicol-1/#valdef-column-fill-balance-all>CSS Multicol 1</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-2022/ title='balance-all is referenced by CSS Snapshot 2022'>CSS Snapshot 2022</a>,
<a href=https://drafts.csswg.org/css-2023/ title='balance-all is referenced by CSS Snapshot 2023'>CSS Snapshot 2023</a></dd>
<dt id="balanced@@RTCDegradationPreference@enum-value"><code class=prefix></code><span><strong><code class=webidl>"balanced"</code></strong> (<em>value for <a href='r.html#RTCDegradationPreference@@@@enum'><code>RTCDegradationPreference</code></a> WebIDL enumeration</em>) <a class='self-link' href='#balanced%40%40RTCDegradationPreference%40enum-value' aria-label="Permalink for balanced">§</a></span></dt>
<dd>Defined in <strong title='balanced is defined in MediaStreamTrack Content Hints'><a href=https://w3c.github.io/mst-content-hint/#dom-rtcdegradationpreference-balanced>MediaStreamTrack Content Hints</a></strong> </dd>
<dt id="balanced@@AudioContextLatencyCategory@enum-value"><code class=prefix></code><span><strong><code class=webidl>"balanced"</code></strong> (<em>value for <a href='a.html#AudioContextLatencyCategory@@@@enum'><code>AudioContextLatencyCategory</code></a> WebIDL enumeration</em>) <a class='self-link' href='#balanced%40%40AudioContextLatencyCategory%40enum-value' aria-label="Permalink for balanced">§</a></span></dt>
<dd>Defined in <strong title='balanced is defined in Web Audio API'><a href=https://webaudio.github.io/web-audio-api/#dom-audiocontextlatencycategory-balanced>Web Audio API</a></strong> </dd>
<dt id="balanced@@RTCBundlePolicy@enum-value"><code class=prefix></code><span><strong><code class=webidl>"balanced"</code></strong> (<em>value for <a href='r.html#RTCBundlePolicy@@@@enum'><code>RTCBundlePolicy</code></a> WebIDL enumeration</em>) <a class='self-link' href='#balanced%40%40RTCBundlePolicy%40enum-value' aria-label="Permalink for balanced">§</a></span></dt>
<dd>Defined in <strong title='balanced is defined in WebRTC 1.0'><a href=https://w3c.github.io/webrtc-pc/#dom-rtcbundlepolicy-balanced>WebRTC 1.0</a></strong> </dd>
<dt id="bandpass@@BiquadFilterType@enum-value"><code class=prefix></code><span><strong><code class=webidl>"bandpass"</code></strong> (<em>value for <a href='b.html#BiquadFilterType@@@@enum'><code>BiquadFilterType</code></a> WebIDL enumeration</em>) <a class='self-link' href='#bandpass%40%40BiquadFilterType%40enum-value' aria-label="Permalink for bandpass">§</a></span></dt>
<dd>Defined in <strong title='bandpass is defined in Web Audio API'><a href=https://webaudio.github.io/web-audio-api/#dom-biquadfiltertype-bandpass>Web Audio API</a></strong> </dd>
<dt id="bandwidth@@RTCQualityLimitationReason@enum-value"><code class=prefix></code><span><strong><code class=webidl>"bandwidth"</code></strong> (<em>value for <a href='r.html#RTCQualityLimitationReason@@@@enum'><code>RTCQualityLimitationReason</code></a> WebIDL enumeration</em>) <a class='self-link' href='#bandwidth%40%40RTCQualityLimitationReason%40enum-value' aria-label="Permalink for bandwidth">§</a></span></dt>
<dd>Defined in <strong title='bandwidth is defined in WebRTC Statistics'><a href=https://w3c.github.io/webrtc-stats/#dom-rtcqualitylimitationreason-bandwidth>WebRTC Statistics</a></strong> </dd>
<dt id="bar@@caret-shape@value"><code class=prefix></code><span><strong><code class=css>bar</code></strong> (<em>CSS value for <a href='c.html#caret-shape@@@@property'><code>caret-shape</code></a> </em>) <a class='self-link' href='#bar%40%40caret-shape%40value' aria-label="Permalink for bar">§</a></span></dt>
<dd>Defined in <strong title='bar is defined in CSS User Interface 4'><a href=https://drafts.csswg.org/css-ui-4/#valdef-caret-shape-bar>CSS User Interface 4</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-nesting-1/ title='bar is referenced by CSS Nesting'>CSS Nesting</a></dd>
<dt id="BarcodeDetector@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BarcodeDetector</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BarcodeDetector%40%40%40%40interface' aria-label="Permalink for BarcodeDetector">§</a></span></dt>
<dd>Defined in <strong title='BarcodeDetector is defined in Accelerated Shape Detection in Images'><a href=https://wicg.github.io/shape-detection-api/#barcodedetector>Accelerated Shape Detection in Images</a></strong> </dd>
<dd>Related terms: <code>new </code><a href='b.html#BarcodeDetector(barcodeDetectorOptions)@@BarcodeDetector@constructor'><code>BarcodeDetector(barcodeDetectorOptions)</code></a>, <code>BarcodeDetector.</code><a href='d.html#detect(image)@@BarcodeDetector@method'><code>detect(image)</code></a>, <code>BarcodeDetector.</code><a href='g.html#getSupportedFormats()@@BarcodeDetector@method'><code>getSupportedFormats()</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BarcodeDetector.html' title='BarcodeDetector entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BarcodeDetector(barcodeDetectorOptions)@@BarcodeDetector@constructor"><code class=prefix>new </code><span><strong><code class=webidl>BarcodeDetector(barcodeDetectorOptions)</code></strong> (<em>WebIDL constructor</em>) <a class='self-link' href='#BarcodeDetector(barcodeDetectorOptions)%40%40BarcodeDetector%40constructor' aria-label="Permalink for new BarcodeDetector(barcodeDetectorOptions)">§</a></span></dt>
<dd>Defined in <strong title='BarcodeDetector(barcodeDetectorOptions) is defined in Accelerated Shape Detection in Images'><a href=https://wicg.github.io/shape-detection-api/#dom-barcodedetector-barcodedetector>Accelerated Shape Detection in Images</a></strong> </dd>
<dt id="BarcodeDetectorOptions@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BarcodeDetectorOptions</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BarcodeDetectorOptions%40%40%40%40dictionary' aria-label="Permalink for BarcodeDetectorOptions">§</a></span></dt>
<dd>Defined in <strong title='BarcodeDetectorOptions is defined in Accelerated Shape Detection in Images'><a href=https://wicg.github.io/shape-detection-api/#dictdef-barcodedetectoroptions>Accelerated Shape Detection in Images</a></strong> </dd>
<dd>Related terms: <code>BarcodeDetectorOptions.</code><a href='f.html#formats@@BarcodeDetectorOptions@dict-member'><code>formats</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BarcodeDetectorOptions.html' title='BarcodeDetectorOptions entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BarcodeFormat@@@@enum"><code class=prefix></code><span><strong><code class=webidl>BarcodeFormat</code></strong> (<em>WebIDL enumeration</em>) <a class='self-link' href='#BarcodeFormat%40%40%40%40enum' aria-label="Permalink for BarcodeFormat">§</a></span></dt>
<dd>Defined in <strong title='BarcodeFormat is defined in Accelerated Shape Detection in Images'><a href=https://wicg.github.io/shape-detection-api/#enumdef-barcodeformat>Accelerated Shape Detection in Images</a></strong> </dd>
<dd>Related terms: <em>value</em> <a href='a.html#aztec@@BarcodeFormat@enum-value'><code>aztec</code></a>, <em>value</em> <a href='c.html#codabar@@BarcodeFormat@enum-value'><code>codabar</code></a>, <em>value</em> <a href='c.html#code_128@@BarcodeFormat@enum-value'><code>code_128</code></a>, <em>value</em> <a href='c.html#code_39@@BarcodeFormat@enum-value'><code>code_39</code></a>, <em>value</em> <a href='c.html#code_93@@BarcodeFormat@enum-value'><code>code_93</code></a>, <em>value</em> <a href='d.html#data_matrix@@BarcodeFormat@enum-value'><code>data_matrix</code></a>, <em>value</em> <a href='e.html#ean_13@@BarcodeFormat@enum-value'><code>ean_13</code></a>, <em>value</em> <a href='e.html#ean_8@@BarcodeFormat@enum-value'><code>ean_8</code></a>, <em>value</em> <a href='i.html#itf@@BarcodeFormat@enum-value'><code>itf</code></a>, <em>value</em> <a href='p.html#pdf417@@BarcodeFormat@enum-value'><code>pdf417</code></a>, <em>value</em> <a href='q.html#qr_code@@BarcodeFormat@enum-value'><code>qr_code</code></a>, <em>value</em> <a href='u.html#unknown@@BarcodeFormat@enum-value'><code>unknown</code></a>, <em>value</em> <a href='u.html#upc_a@@BarcodeFormat@enum-value'><code>upc_a</code></a>, <em>value</em> <a href='u.html#upc_e@@BarcodeFormat@enum-value'><code>upc_e</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BarcodeFormat.html' title='BarcodeFormat entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BarProp@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BarProp</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BarProp%40%40%40%40interface' aria-label="Permalink for BarProp">§</a></span></dt>
<dd>Defined in <strong title='BarProp is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/nav-history-apis.html#barprop>HTML</a></strong> </dd>
<dd>Related terms: <code>BarProp.</code><a href='v.html#visible@@BarProp@attribute'><code>visible</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BarProp.html' title='BarProp entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="base@@html%%element"><code class=prefix></code><span><strong><code class=markup>base</code></strong> (<em>markup element</em>) <a class='self-link' href='#base%40%40html%25%25element' aria-label="Permalink for base">§</a></span></dt>
<dd>Defined in <strong title='base is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/semantics.html#the-base-element>HTML</a></strong> </dd>
<dd>Referenced in
<a href=https://wicg.github.io/csp-next/scripting-policy.html title='base is referenced by Scripting Policy'>Scripting Policy</a>,
<a href=https://w3c.github.io/webappsec-csp/ title='base is referenced by Content Security Policy 3'>Content Security Policy 3</a>,
<a href=https://drafts.csswg.org/css-values-3/ title='base is referenced by CSS Values 3'>CSS Values 3</a>,
<a href=https://drafts.csswg.org/css-values-4/ title='base is referenced by CSS Values 4'>CSS Values 4</a>,
<a href=https://w3c.github.io/epub-specs/epub33/core/ title='base is referenced by EPUB 3.3'>EPUB 3.3</a>,
<a href=https://w3c.github.io/html-aam/ title='base is referenced by HTML Accessibility API Mappings 1.0'>HTML Accessibility API Mappings 1.0</a>,
<a href=https://w3c.github.io/html-aria/ title='base is referenced by ARIA in HTML'>ARIA in HTML</a>,
<a href=https://w3c.github.io/pub-manifest/ title='base is referenced by Publication Manifest'>Publication Manifest</a>,
<a href=https://svgwg.org/svg2-draft/ title='base is referenced by SVG 2'>SVG 2</a></dd>
<dd>Related terms: <em>markup attribute</em> <a href='h.html#href@@base@element-attr'><code>href</code></a>, <em>markup attribute</em> <a href='t.html#target@@base@element-attr'><code>target</code></a></dd>
<dt id="base@@appearance@value"><code class=prefix></code><span><strong><code class=css>base</code></strong> (<em>CSS value for <a href='a.html#appearance@@@@property'><code>appearance</code></a> </em>) <a class='self-link' href='#base%40%40appearance%40value' aria-label="Permalink for base">§</a></span></dt>
<dd>Defined in <strong title='base is defined in CSS User Interface 4'><a href=https://drafts.csswg.org/css-ui-4/#valdef-appearance-base>CSS User Interface 4</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-cascade-5/ title='base is referenced by CSS Cascading 5'>CSS Cascading 5</a></dd>
<dt id="base@@JsonLdOptions@dict-member"><code class=prefix><a href='j.html#JsonLdOptions@@@@dictionary'>JsonLdOptions</a>.</code><span><strong><code class=webidl>base</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#base%40%40JsonLdOptions%40dict-member' aria-label="Permalink for <a href='j.html#JsonLdOptions@@@@dictionary'>JsonLdOptions</a>.base">§</a></span></dt>
<dd>Defined in <strong title='base is defined in JSON-LD 1.1 Processing Algorithms and API'><a href=https://w3c.github.io/json-ld-api/#dom-jsonldoptions-base>JSON-LD 1.1 Processing Algorithms and API</a></strong> </dd>
<dt id="base appearance@@css-ui%%dfn"><code class=prefix></code><span><strong>base appearance</strong> (<em>concept</em>) <a class='self-link' href='#base%20appearance%40%40css-ui%25%25dfn' aria-label="Permalink for base appearance">§</a></span></dt>
<dd>Defined in <strong title='base appearance is defined in CSS User Interface 4'><a href=https://drafts.csswg.org/css-ui-4/#base-appearance>CSS User Interface 4</a></strong> </dd>
<dd>Referenced in
<a href=https://drafts.csswg.org/css-forms-1/ title='base appearance is referenced by CSS Form Styling 1'>CSS Form Styling 1</a></dd>
<dt id="Base direction@@i18n-glossary%%dfn"><code class=prefix></code><span><strong>Base direction</strong> (<em>concept</em>) <a class='self-link' href='#Base%20direction%40%40i18n-glossary%25%25dfn' aria-label="Permalink for Base direction">§</a></span></dt>
<dd>Defined in <strong title='Base direction is defined in Internationalization Glossary'><a href=https://w3c.github.io/i18n-glossary/#dfn-base-direction>Internationalization Glossary</a></strong> </dd>
<dt id="base IRI@@rdf-concepts%%dfn"><code class=prefix></code><span><strong>base IRI</strong> (<em>concept</em>) <a class='self-link' href='#base%20IRI%40%40rdf-concepts%25%25dfn' aria-label="Permalink for base IRI">§</a></span></dt>
<dd>Defined in <strong title='base IRI is defined in RDF 1.2 Concepts and Abstract Syntax'><a href=https://w3c.github.io/rdf-concepts/spec/#dfn-base-iri>RDF 1.2 Concepts and Abstract Syntax</a></strong> </dd>
<dt id="base type@@CSSNumericValue@dfn"><code class=prefix></code><span><strong>base type</strong> (<em>concept for <a href='c.html#CSSNumericValue@@@@interface'><code>CSSNumericValue</code></a> </em>) <a class='self-link' href='#base%20type%40%40CSSNumericValue%40dfn' aria-label="Permalink for base type">§</a></span></dt>
<dd>Defined in <strong title='base type is defined in CSS Typed OM 1'><a href=https://drafts.css-houdini.org/css-typed-om-1/#cssnumericvalue-base-type>CSS Typed OM 1</a></strong> </dd>
<dt id="base URL@@script@dfn"><code class=prefix></code><span><strong>base URL</strong> (<em>concept for <code>script</code> </em>) <a class='self-link' href='#base%20URL%40%40script%40dfn' aria-label="Permalink for base URL">§</a></span></dt>
<dd>Defined in <strong title='base URL is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-base-url>HTML</a></strong> </dd>
<dd>Referenced in
<a href=https://w3c.github.io/long-animation-frames/ title='base URL is referenced by Long Animation Frames API'>Long Animation Frames API</a>,
<a href=https://w3c.github.io/webdriver-bidi/ title='base URL is referenced by WebDriver BiDi'>WebDriver BiDi</a>,
<a href=https://w3c.github.io/ServiceWorker/ title='base URL is referenced by Service Workers'>Service Workers</a></dd>
<dt id="base-palette@@@font-palette-values@descriptor"><code class=prefix></code><span><strong><code class=css>base-palette</code></strong> (<em>CSS descriptor for <a href='f.html#@font-palette-values@@@@at-rule'><code>@font-palette-values</code></a> </em>) <a class='self-link' href='#base-palette%40%40%40font-palette-values%40descriptor' aria-label="Permalink for base-palette">§</a></span></dt>
<dd>Defined in <strong title='base-palette is defined in CSS Fonts 4'><a href=https://drafts.csswg.org/css-fonts-4/#descdef-font-palette-values-base-palette>CSS Fonts 4</a></strong> </dd>
<dd>Related terms: <em>CSS type</em> <a href='i.html#<integer>@@base-palette@type'><code><integer></code></a>, <em>CSS value</em> <a href='d.html#dark@@base-palette@value'><code>dark</code></a>, <em>CSS value</em> <a href='l.html#light@@base-palette@value'><code>light</code></a></dd>
<dt id="base-uri@@CSP%%dfn"><code class=prefix></code><span><strong>base-uri</strong> (<em>concept</em>) <a class='self-link' href='#base-uri%40%40CSP%25%25dfn' aria-label="Permalink for base-uri">§</a></span></dt>
<dd>Defined in <strong title='base-uri is defined in Content Security Policy 3'><a href=https://w3c.github.io/webappsec-csp/#base-uri>Content Security Policy 3</a></strong> </dd>
<dt id="base64-value@@CSP%%grammar"><code class=prefix></code><span><strong><code class=grammar>base64-value</code></strong> (<em>grammar</em>) <a class='self-link' href='#base64-value%40%40CSP%25%25grammar' aria-label="Permalink for base64-value">§</a></span></dt>
<dd>Defined in <strong title='base64-value is defined in Content Security Policy 3'><a href=https://w3c.github.io/webappsec-csp/#grammardef-base64-value>Content Security Policy 3</a></strong> </dd>
<dd>Referenced in
<a href=https://wicg.github.io/nav-speculation/speculation-rules.html title='base64-value is referenced by Speculation Rules'>Speculation Rules</a>,
<a href=https://w3c.github.io/webappsec-subresource-integrity/ title='base64-value is referenced by SRI'>SRI</a></dd>
<dt id="base64Certificate@@RTCCertificateStats@dict-member"><code class=prefix><a href='r.html#RTCCertificateStats@@@@dictionary'>RTCCertificateStats</a>.</code><span><strong><code class=webidl>base64Certificate</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#base64Certificate%40%40RTCCertificateStats%40dict-member' aria-label="Permalink for <a href='r.html#RTCCertificateStats@@@@dictionary'>RTCCertificateStats</a>.base64Certificate">§</a></span></dt>
<dd>Defined in <strong title='base64Certificate is defined in WebRTC Statistics'><a href=https://w3c.github.io/webrtc-stats/#dom-rtccertificatestats-base64certificate>WebRTC Statistics</a></strong> </dd>
<dt id="Base64URLString@@@@typedef"><code class=prefix></code><span><strong><code class=webidl>Base64URLString</code></strong> (<em>WebIDL type alias</em>) <a class='self-link' href='#Base64URLString%40%40%40%40typedef' aria-label="Permalink for Base64URLString">§</a></span></dt>
<dd>Defined in <strong title='Base64URLString is defined in Web Authentication'><a href=https://w3c.github.io/webauthn/#typedefdef-base64urlstring>Web Authentication</a></strong> </dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/Base64URLString.html' title='Base64URLString entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="baseArrayLayer@@GPUTextureViewDescriptor@dict-member"><code class=prefix><a href='g.html#GPUTextureViewDescriptor@@@@dictionary'>GPUTextureViewDescriptor</a>.</code><span><strong><code class=webidl>baseArrayLayer</code></strong> (<em>WebIDL dictionary member</em>) <a class='self-link' href='#baseArrayLayer%40%40GPUTextureViewDescriptor%40dict-member' aria-label="Permalink for <a href='g.html#GPUTextureViewDescriptor@@@@dictionary'>GPUTextureViewDescriptor</a>.baseArrayLayer">§</a></span></dt>
<dd>Defined in <strong title='baseArrayLayer is defined in WebGPU'><a href=https://gpuweb.github.io/gpuweb/#dom-gputextureviewdescriptor-basearraylayer>WebGPU</a></strong> </dd>
<dt id="BaseAudioContext@@@@interface"><code class=prefix></code><span><strong><code class=webidl>BaseAudioContext</code></strong> (<em>WebIDL interface</em>) <a class='self-link' href='#BaseAudioContext%40%40%40%40interface' aria-label="Permalink for BaseAudioContext">§</a></span></dt>
<dd>Defined in <strong title='BaseAudioContext is defined in Web Audio API'><a href=https://webaudio.github.io/web-audio-api/#BaseAudioContext>Web Audio API</a></strong> </dd>
<dd>Related terms: <code>BaseAudioContext.</code><a href='a.html#audioWorklet@@BaseAudioContext@attribute'><code>audioWorklet</code></a>, <code>BaseAudioContext.</code><a href='c.html#[[control thread state]]@@BaseAudioContext@attribute'><code>[[control thread state]]</code></a>, <code>BaseAudioContext.</code><a href='c.html#[[current frame]]@@BaseAudioContext@attribute'><code>[[current frame]]</code></a>, <code>BaseAudioContext.</code><a href='c.html#currentTime@@BaseAudioContext@attribute'><code>currentTime</code></a>, <code>BaseAudioContext.</code><a href='d.html#decoding thread@@BaseAudioContext@attribute'><code>decoding thread</code></a>, <code>BaseAudioContext.</code><a href='d.html#destination@@BaseAudioContext@attribute'><code>destination</code></a>, <code>BaseAudioContext.</code><a href='l.html#listener@@BaseAudioContext@attribute'><code>listener</code></a>, <code>BaseAudioContext.</code><a href='o.html#onstatechange@@BaseAudioContext@attribute'><code>onstatechange</code></a>, <code>BaseAudioContext.</code><a href='p.html#[[pending promises]]@@BaseAudioContext@attribute'><code>[[pending promises]]</code></a>, <code>BaseAudioContext.</code><a href='r.html#[[render quantum size]]@@BaseAudioContext@attribute'><code>[[render quantum size]]</code></a>, <code>BaseAudioContext.</code><a href='r.html#[[rendering thread state]]@@BaseAudioContext@attribute'><code>[[rendering thread state]]</code></a>, <code>BaseAudioContext.</code><a href='r.html#renderQuantumSize@@BaseAudioContext@attribute'><code>renderQuantumSize</code></a>, <code>BaseAudioContext.</code><a href='s.html#sampleRate@@BaseAudioContext@attribute'><code>sampleRate</code></a>, <code>BaseAudioContext.</code><a href='s.html#state@@BaseAudioContext@attribute'><code>state</code></a>, <em>event</em> <a href='s.html#statechange@@BaseAudioContext@event'><code>statechange</code></a>, <code>BaseAudioContext.</code><a href='c.html#createAnalyser()@@BaseAudioContext@method'><code>createAnalyser()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createBiquadFilter()@@BaseAudioContext@method'><code>createBiquadFilter()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createBuffer(numberOfChannels, length, sampleRate)@@BaseAudioContext@method'><code>createBuffer(numberOfChannels, length, sampleRate)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createBufferSource()@@BaseAudioContext@method'><code>createBufferSource()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createChannelMerger(numberOfInputs)@@BaseAudioContext@method'><code>createChannelMerger(numberOfInputs)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createChannelSplitter(numberOfOutputs)@@BaseAudioContext@method'><code>createChannelSplitter(numberOfOutputs)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createConstantSource()@@BaseAudioContext@method'><code>createConstantSource()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createConvolver()@@BaseAudioContext@method'><code>createConvolver()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createDelay(maxDelayTime)@@BaseAudioContext@method'><code>createDelay(maxDelayTime)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createDynamicsCompressor()@@BaseAudioContext@method'><code>createDynamicsCompressor()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createGain()@@BaseAudioContext@method'><code>createGain()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createIIRFilter(feedforward, feedback)@@BaseAudioContext@method'><code>createIIRFilter(feedforward, feedback)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createOscillator()@@BaseAudioContext@method'><code>createOscillator()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createPanner()@@BaseAudioContext@method'><code>createPanner()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createPeriodicWave(real, imag, constraints)@@BaseAudioContext@method'><code>createPeriodicWave(real, imag, constraints)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels)@@BaseAudioContext@method'><code>createScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels)</code></a>, <code>BaseAudioContext.</code><a href='c.html#createStereoPanner()@@BaseAudioContext@method'><code>createStereoPanner()</code></a>, <code>BaseAudioContext.</code><a href='c.html#createWaveShaper()@@BaseAudioContext@method'><code>createWaveShaper()</code></a>, <code>BaseAudioContext.</code><a href='d.html#decodeAudioData(audioData, successCallback, errorCallback)@@BaseAudioContext@method'><code>decodeAudioData(audioData, successCallback, errorCallback)</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BaseAudioContext.html' title='BaseAudioContext entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="BaseComputedKeyframe@@@@dictionary"><code class=prefix></code><span><strong><code class=webidl>BaseComputedKeyframe</code></strong> (<em>WebIDL dictionary</em>) <a class='self-link' href='#BaseComputedKeyframe%40%40%40%40dictionary' aria-label="Permalink for BaseComputedKeyframe">§</a></span></dt>
<dd>Defined in <strong title='BaseComputedKeyframe is defined in Web Animations'><a href=https://drafts.csswg.org/web-animations-1/#dictdef-basecomputedkeyframe>Web Animations</a></strong> </dd>
<dd>Related terms: <code>BaseComputedKeyframe.</code><a href='c.html#composite@@BaseComputedKeyframe@dict-member'><code>composite</code></a>, <code>BaseComputedKeyframe.</code><a href='c.html#computedOffset@@BaseComputedKeyframe@dict-member'><code>computedOffset</code></a>, <code>BaseComputedKeyframe.</code><a href='e.html#easing@@BaseComputedKeyframe@dict-member'><code>easing</code></a>, <code>BaseComputedKeyframe.</code><a href='o.html#offset@@BaseComputedKeyframe@dict-member'><code>offset</code></a></dd>
<dd>see also <a href='https://dontcallmedom.github.io/webidlpedia/names/BaseComputedKeyframe.html' title='BaseComputedKeyframe entry on WebIDLpedia'>WebIDLPedia</a></dd><dt id="basefont@@html%%element"><code class=prefix></code><span><strong><code class=markup>basefont</code></strong> (<em>markup element</em>) <a class='self-link' href='#basefont%40%40html%25%25element' aria-label="Permalink for basefont">§</a></span></dt>
<dd>Defined in <strong title='basefont is defined in HTML'><a href=https://html.spec.whatwg.org/multipage/obsolete.html#basefont>HTML</a></strong> </dd>
<dt id="baseFrequency@@feTurbulence@element-attr"><code class=prefix></code><span><strong><code class=markup>baseFrequency</code></strong> (<em>markup attribute for <code>feTurbulence</code> </em>) <a class='self-link' href='#baseFrequency%40%40feTurbulence%40element-attr' aria-label="Permalink for baseFrequency">§</a></span></dt>
<dd>Defined in <strong title='baseFrequency is defined in Filter Effects 1'><a href=https://drafts.fxtf.org/filter-effects-1/#element-attrdef-feturbulence-basefrequency>Filter Effects 1</a></strong> </dd>