ruby-align

The ruby-align CSS property defines the distribution of the different ruby elements over the base.

Syntax

/* 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: revert-layer;
ruby-align: unset;

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

{{cssinfo}}

Formal syntax

{{csssyntax}}

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

{{EmbedLiveSample("Ruby_aligned_at_the_start_of_the_base_text", 180, 40)}}

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

{{EmbedLiveSample("Ruby_aligned_at_the_center_of_the_base_text", 180, 40)}}

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

{{EmbedLiveSample("Extra_space_distributed_between_ruby_elements", 180, 40)}}

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

{{EmbedLiveSample("Extra_space_distributed_between_and_around_ruby_elements", 180, 40)}}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{cssxref("ruby-position")}}
• CSS ruby layout module
• HTML Ruby elements: {{HTMLElement("ruby")}}, {{HTMLElement("rt")}}, {{HTMLElement("rp")}}, and {{HTMLElement("rtc")}}