The CSS ruby layout module provides the rendering model and formatting controls related to the display of ruby annotations. Ruby annotations are a form of interlinear annotation, consisting of short runs of text alongside the base text. They are typically used in East Asian documents to indicate pronunciation or define meaning.

Reference

Properties

• ruby-align
• ruby-position

The CSS ruby layout module also introduces the ruby-merge and ruby-overhang properties. Currently, no browsers support these features.

Display values

The CSS ruby layout module adds the following values to the display property:

• ruby
• ruby-base
• ruby-text
• ruby-base-container
• ruby-text-container

Glossary and keywords

• ruby

Related concepts

• CSS display module
  • display
  • <display-internal>
• CSS text decoration module
  • text-emphasis-color
  • text-emphasis-position
  • text-emphasis-style
  • text-emphasis shorthand
• HTML elements
  • <rb>
  • <rp>
  • <rt>
  • <rtc>
  • <ruby>

Specifications

See also

• direction
• unicode-bidi
• font-variant-east-asian
• :lang()
• HTML lang attribute