This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ruby-align
CSS property defines the distribution of the different ruby elements over the base.
/* Keyword values */ ruby-align: start; ruby-align: center; ruby-align: space-between; ruby-align: space-around; /* Global values */ ruby-align: inherit; ruby-align: initial; ruby-align: unset;
Syntax
Values
start
- Is a keyword indicating that the ruby will be aligned with the start of the base text.
center
- Is a keyword indicating that the ruby will be aligned at the middle of the base text.
space-between
- Is a keyword indicating that the extra space will be distributed between the elements of the ruby.
space-around
- Is a keyword indicating that the extra space will be distributed between the elements of the ruby, and around it.
Formal definition
Initial value | space-around |
---|---|
Applies to | ruby bases, ruby annotations, ruby base containers, ruby annotation containers |
Inherited | yes |
Computed value | as specified |
Animation type | discrete |
Formal syntax
start | center | space-between | space-around
Examples
Ruby aligned at the start of the base text
HTML
<ruby> <rb>This is a long text to check</rb> <rp>(</rp><rt>short ruby</rt><rp>)</rp> </ruby>
CSS
ruby { ruby-align: start; }
Result
Ruby aligned at the center of the base text
HTML
<ruby> <rb>This is a long text to check</rb> <rp>(</rp><rt>short ruby</rt><rp>)</rp> </ruby>
CSS
ruby { ruby-align: center; }
Result
Extra space distributed between ruby elements
HTML
<ruby> <rb>This is a long text to check</rb> <rp>(</rp><rt>short ruby</rt><rp>)</rp> </ruby>
CSS
ruby { ruby-align: space-between; }
Result
Extra space distributed between and around ruby elements
HTML
<ruby> <rb>This is a long text to check</rb> <rp>(</rp><rt>short ruby</rt><rp>)</rp> </ruby>
CSS
ruby { ruby-align: space-around; }
Result
Specifications
Specification | Status | Comment |
---|---|---|
CSS Ruby Layout Module Level 1 The definition of 'ruby-align' in that specification. |
Working Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ruby-align | Chrome No support No | Edge No support No | Firefox Full support 38 | IE
No support
No
| Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android Full support 38 | Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
See also
- HTML Ruby elements:
<ruby>
,<rt>
,<rp>
, and<rtc>
. - CSS Ruby properties:
ruby-position
,ruby-merge
.