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


    Formal syntax: normal | [ <east-asian-variant-values> || <east-asian-width-values> || ruby ] 
    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
    font-variant-east-asian: initial
    font-variant-east-asian: inherit
    font-variant-east-asian: unset


    This keyword leads to the deactivation of the use of such alternate glyphs.
    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.
    These values activates the figures defined in specific standard. Possible values are:
    Keyword Standard defining the glyphs OpenType equivalent
    jis78 JIS X 208 version 1978 jp78
    jis83 JIS X 208 version 1983 jp83
    jis90 JIS X 208 version 1990 jp90
    jis04 JIS X 208 version 2004 jp04
    simplified None, use the simplified Chinese glyphs smpl
    traditional None, use the traditional Chinese glyphs trad
    These values controls the sizing of figures used for East Asian characters. Two values are possible:
    • proportional-width activating the set of figures where numbers are not all of the same size. It corresponds to the OpenType values pwid.
    • full-width activating the set of figures where numbers are all of the same size, allowing them to be easily aligned like in tables. It corresponds to the OpenType values fwid.


    p {
      font-variant-east-asian: ruby;


    Specification Status Comment
    CSS Fonts Module Level 3
    The definition of 'font-variant-east-asian' in that specification.
    Candidate Recommendation Initial definition

    Browser Compatibility

    Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari (WebKit)
    Basic support 34 (34) [1] ? ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
    Basic support ? 34.0 (34)[1] ? ? ?

    [1] Experimental implementation was available since Gecko 24. It was governed by the preference layout.css.font-features.enabled defaulting to true on Nightly and Aurora only.

    See also

    Document Tags and Contributors

    Contributors to this page: teoli
    Last updated by: teoli,