ruby-align

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: revert;
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 valuespace-around
Applies toruby bases, ruby annotations, ruby base containers, ruby annotation containers
Inheritedyes
Computed valueas specified
Animation typediscrete

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

See also