font-variant-east-asian

The font-variant-east-asian CSS property controls the use of alternate glyphs for East Asian scripts, like Japanese and Chinese.

Syntax

font-variant-east-asian: normal;
font-variant-east-asian: ruby;
font-variant-east-asian: jis78; /* <east-asian-variant-values> */
font-variant-east-asian: jis83; /* <east-asian-variant-values> */
font-variant-east-asian: jis90; /* <east-asian-variant-values> */
font-variant-east-asian: jis04; /* <east-asian-variant-values> */
font-variant-east-asian: simplified; /* <east-asian-variant-values> */
font-variant-east-asian: traditional; /* <east-asian-variant-values> */
font-variant-east-asian: full-width; /* <east-asian-width-values> */
font-variant-east-asian: proportional-width; /* <east-asian-width-values> */
font-variant-east-asian: ruby full-width jis83;

/* Global values */
font-variant-east-asian: inherit;
font-variant-east-asian: initial;
font-variant-east-asian: revert;
font-variant-east-asian: revert-layer;
font-variant-east-asian: unset;

Values

normal

This keyword leads to the deactivation of the use of such alternate glyphs.

ruby

This keyword forces the use of special glyphs for ruby characters. As these are usually smaller, font creators often designs specific forms, usually slightly bolder to improve the contrast. This keyword corresponds to the OpenType values ruby.

<east-asian-variant-values>

These values specify a set of logographic glyph variants which should be used for display. Possible values are:

Keyword	Standard defining the glyphs	OpenType equivalent
`jis78`	JIS X 0208:1978	`jp78`
`jis83`	JIS X 0208:1983	`jp83`
`jis90`	JIS X 0208:1990	`jp90`
`jis04`	JIS X 0213:2004	`jp04`
`simplified`	None, use the simplified Chinese glyphs	`smpl`
`traditional`	None, use the traditional Chinese glyphs	`trad`

<east-asian-width-values>

These values control the sizing of figures used for East Asian characters. Two values are possible:

proportional-width activating the set of East Asian characters which vary in width. It corresponds to the OpenType values pwid.
full-width activating the set of East Asian characters which are all of the same, roughly square, width metric. It corresponds to the OpenType values fwid.

Formal definition

Initial value	normal
Applies to	all elements and text
Inherited	yes
Computed value	as specified
Animation type	discrete

Formal syntax

normal | [ <east-asian-variant-values> || <east-asian-width-values> || ruby ]

Examples

Setting East Asian glyph variants

This example require font "Yu Gothic" installed in your OS, other fonts may not support OpenType features.

HTML

<table>
  <thead></thead>
  <tbody style="border:0;">
    <tr>
      <th>normal/jis78:</th>
      <td>麹町</td>
      <td class="jis78">麹町</td>
    </tr>
    <tr>
      <th>normal/ruby:</th>
      <td>しんかんせん</td>
      <td class="ruby">しんかんせん</td>
    </tr>
    <tr>
      <th>normal/traditional:</th>
      <td>大学</td>
      <td class="traditional">大学</td>
    </tr>
  </tbody>
</table>

CSS

td {
  font-family: "Yu Gothic";
  font-size: 20px;
}
th {
  color: grey;
  padding-right: 10px;
}

.ruby {
  font-variant-east-asian: ruby;
}

.jis78 {
  font-variant-east-asian: jis78;
}

.traditional {
  font-variant-east-asian: traditional;
}

css properties font-variant-east-asian