tor-browser

commit d778f470cc27db023c4429fa1de1d3565c8cda98
parent 3241223d368108168b7c15712cab930e48c56a19
Author: Jonathan Kew <jkew@mozilla.com>
Date:   Thu, 16 Oct 2025 08:50:14 +0000

Bug 1980101 - Apply text-decoration-trim:auto to underline and strikethrough elements in CJK languages. r=layout-jp-market-reviewers,AlaskanEmily

Differential Revision: https://phabricator.services.mozilla.com/D268711

Diffstat:
M
browser/base/content/test/static/browser_parsable_css.js
 | 
5
+++++
M
layout/style/res/html.css
 | 
18
++++++++++++++++++

2 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/browser/base/content/test/static/browser_parsable_css.js b/browser/base/content/test/static/browser_parsable_css.js
@@ -73,6 +73,11 @@ if (!Services.prefs.getBoolPref("layout.css.scroll-anchoring.enabled")) {
 
 if (!Services.prefs.getBoolPref("layout.css.text-decoration-trim.enabled")) {
   ignoreList.push({
+    sourceName: /html\.css$/i,
+    errorMessage: /Unknown property .*text-decoration-trim/i,
+    isFromDevTools: false,
+  });
+  ignoreList.push({
     sourceName: /ua\.css$/i,
     errorMessage: /Unknown property .*text-decoration-trim/i,
     isFromDevTools: false,
diff --git a/layout/style/res/html.css b/layout/style/res/html.css
@@ -527,6 +527,24 @@ del {
   text-decoration: line-through;
 }
 
+u:lang(ja),
+u:lang(ko),
+u:lang(zh),
+s:lang(ja),
+s:lang(ko),
+s:lang(zh),
+ins:lang(ja),
+ins:lang(ko),
+ins:lang(zh),
+del:lang(ja),
+del:lang(ko),
+del:lang(zh),
+strike:lang(ja),
+strike:lang(ko),
+strike:lang(zh) {
+  text-decoration-trim: auto;
+}
+
 big {
   font-size: larger;
 }