Web features explorer - ruby-overhang

Web features explorer

The ruby-overhang CSS property sets whether ruby annotations may overlap adjacent text.

Browser support

Chrome 151 Released on 2026-07-28
Chrome Android 151 Released on 2026-07-28
Edge 151 Released on 2026-07-31
Firefox Not supported Bugs: 1611410
Firefox for Android Not supported
Safari 18.2 Released on 2024-12-11
Safari on iOS 18.2 Released on 2024-12-11

Baseline availability blocked since July 2026 by Firefox (4 months)

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MDN documentation

`ruby-overhang` CSS property

Specifications

CSS Ruby Annotation Layout Module Level 1 (#ruby-overhang), from Cascading Style Sheets (CSS) Working Group (W3C).

Web Platform Tests (WPT)

View the latest WPT test results for this feature

View as JSON | Edit this feature | Report an issue | Web-features entry: source, dist