ruby-align - CSS: Cascading Style Sheets

Experimental

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

BCD tables only load in the browser