diff --git a/ext/css/structured-content.css b/ext/css/structured-content.css
index a79d9ddc4..b285874f0 100644
--- a/ext/css/structured-content.css
+++ b/ext/css/structured-content.css
@@ -19,6 +19,8 @@
 /* Glossary images */
 .gloss-image-container {
     display: inline-block;
+    font-size: calc(1em / var(--font-size-no-units));
+    overflow: hidden;
 }
 .gloss-image-link[data-background=true]>.gloss-image-container {
     background-color: var(--gloss-image-background-color);
diff --git a/ext/data/structured-content-style.json b/ext/data/structured-content-style.json
index 47b1e9951..caae8761b 100644
--- a/ext/data/structured-content-style.json
+++ b/ext/data/structured-content-style.json
@@ -3,6 +3,7 @@
         "selectors": [".gloss-image-container"],
         "styles": [
             ["display", "inline-block"],
+            ["overflow", "hidden"],
             ["font-size", "1px"]
         ]
     },
diff --git a/test/data/anki-note-builder-test-results.json b/test/data/anki-note-builder-test-results.json
index 617464d3e..86e64ed13 100644
--- a/test/data/anki-note-builder-test-results.json
+++ b/test/data/anki-note-builder-test-results.json
@@ -863,12 +863,12 @@
         "frequency-average-occurrence": "0",
         "furigana": "<ruby>画像<rt>がぞう</rt></ruby>",
         "furigana-plain": "画像[がぞう]",
-        "glossary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
         "part-of-speech": "Noun",
         "pitch-accents": "",
         "pitch-accent-graphs": "",
@@ -1570,12 +1570,12 @@
         "frequency-average-occurrence": "0",
         "furigana": "<ruby>画像<rt>がぞう</rt></ruby>",
         "furigana-plain": "画像[がぞう]",
-        "glossary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
-        "glossary-first-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n, termsDictAlias)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first-brief": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
+        "glossary-first-no-dictionary": "<div style=\"text-align: left;\" class=\"yomitan-glossary\"><i>(n)</i> <ul><li>gazou definition 1</li><li><a target=\"_blank\" rel=\"noreferrer noopener\" style=\"cursor:inherit;display:inline-block;position:relative;line-height:1;max-width:100%;color:inherit;\"><span style=\"display:inline-block;overflow:hidden;font-size:1px;\"><img width=\"350\" height=\"350\" style=\"display:inline-block;vertical-align:top;object-fit:contain;border:none;outline:none;width:100%;image-rendering:auto;image-rendering:-moz-crisp-edges;image-rendering:-webkit-optimize-contrast;image-rendering:pixelated;image-rendering:crisp-edges;\"></span></a></li></ul><style>.yomitan-glossary ul[data-sc-content='glossary'] {\n    color: #ffff00;\n}</style></div>",
         "part-of-speech": "Noun",
         "pitch-accents": "",
         "pitch-accent-graphs": "",