On 3/15/26 7:58 p.m., Chromestatus wrote:
*Contact emails*
[email protected]
*Specification*
https://drafts.csswg.org/css-ruby/#ruby-overhang
*Summary*
Support of new CSS property `ruby-overhang` is added. The property
accepts one of `auto` and `none` keywords, and controls overhang of
ruby annotation text.
*Blink component*
Blink>Layout>Ruby
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELayout%3ERuby%22>
*Web Feature ID*
ruby-overhang <https://webstatus.dev/features/ruby-overhang>
*Motivation*
A ruby annotation can sometimes obscure adjacent content when it
overhangs. The ruby-overhang property gives authors a way to disable
this behavior and prevent unwanted overlap.
*Initial public proposal*
/No information provided/
*Search tags*
css </features#tags:css>, ruby </features#tags:ruby>
*TAG review*
/No information provided/
*TAG review status*
Not applicable
*Goals for experimentation*
None
*Risks*
*Interoperability and Compatibility*
Risks are low. This is a support for new value of CSS properties. So
sites not using properties won't be affected. Safari has supported
this feature for years.
Minor nit: based on the linked WebKit bug, this landed in a Tech Preview
about 6 months ago (or maybe some parts of support landed - a bit
unclear). But it does seem to be supported in Safari 26.3 stable.
/Gecko/: No signal
Can we request a signal?
/WebKit/:
Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=114678)
/Web developers/: No signals
/Other signals/:
*WebView application risks*
Does this intent deprecate or change behavior of existing APIs, such
that it has potentially high risk for Android WebView-based applications?
No
*Debuggability*
/No information provided/
*Will this feature be supported on all six Blink platforms (Windows,
Mac, Linux, ChromeOS, Android, and Android WebView)?*
Yes
*Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
Yes
"ruby-overhang*" files in https://wpt.fyi/results/css/css-ruby
*Flag name on about://flags*
enable-experimental-web-platform-features
*Finch feature name*
CSSRubyOverhang
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://issues.chromium.org/issues/366873207
*Estimated milestones*
Shipping on desktop 148
Shipping on Android 148
Shipping on WebView 148
*Anticipated spec changes*
Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github
issues in the project for the feature specification) whose resolution
may introduce web compat/interop risk (e.g., changing to naming or
structure of the API in a non-backward-compatible way).
/No information provided/
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/6560118298771456?gate=6494196590575616
*Links to previous Intent discussions*
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/ffa95dff-f582-41cb-b0a5-d80159656284n%40chromium.org
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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