CSS Backgrounds and Borders

[stubbornella]

Description

There are various inconsistencies between browsers on how some kinds of borders and background render, and some newer features like background-clip: border-area/text that we should drive interop on. @smfr

This includes the following areas:

• CSS border property and longhands
• CSS border-image
• CSS backgrounds property and longhands

Specification

various

Additional Signals

No response

[gsnedders]

I believe we're proposing https://wpt.fyi/results/css?label=experimental&label=master&aligned&q=path%3A%2Fcss%2Fcss-backgrounds%20or%20path%3A%2Fcss%2Fcss-borders%20or%20path%3A%2Fcss%2FCSS2%2Fbackgrounds%20or%20path%3A%2Fcss%2FCSS2%2Fborders%20not%20is%3Atentative here? Note that this actually currently gives too many tests, due to web-platform-tests/wpt.fyi#4048.

[atjn]

This could potentially be bundled with these proposals:
#727
#713