The HTML <ruby> Element represents a ruby annotation. Ruby annotations are for showing pronunciation of East Asian characters.

Content categories Flow content, phrasing content, palpable content.
Permitted content Phrasing content.
Tag omission None, both the starting and ending tag are mandatory.
Permitted parent elements See prose
DOM interface HTMLElement


This element only includes the global attributes.


Example 1: Character

  漢 <rp>(</rp><rt>Kan</rt><rp>)</rp>
  字 <rp>(</rp><rt>ji</rt><rp>)</rp>

Example 2: Word

  明日 <rp>(</rp><rt>Ashita</rt><rp>)</rp>


Specification Status Comment
WHATWG HTML Living Standard
The definition of '<ruby>' in that specification.
Living Standard  
The definition of '<ruby>' in that specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5.0 38 (38) 5.0 Not supported 5.0
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 38.0 (38) (Yes) (Yes) (Yes)

See also

Document Tags and Contributors

 Last updated by: Sebastianz,