ai css font-variant-east-asian 2026-08-19

tt (大学)

ai css font-variant-east-asian

explain font-variant-east-asian

ai answer

2026-08-19 doesnt work. to make it work, you need font-family: "Yu Gothic", fantasy; but it only works on the char 学, not 门. seems depends on font.

洞门外有个东土来的孙悟空和尚，要见奶奶 (大学)

洞门外有个东土来的孙悟空和尚，要见奶奶 (大学)

font-variant-east-asian is a CSS property that controls the use of alternate glyphs (character shapes) for East Asian scripts such as Japanese, Chinese, and related writing systems.

It lets you influence which variant forms of characters the font should use when multiple options exist (e.g., different historical standards, simplified vs. traditional Chinese forms, or full-width vs. proportional-width characters). The browser maps these values to corresponding OpenType font features when the selected font supports them.

Syntax

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

You can combine the non-normal values in any order (space-separated).

Values

Key characteristics

• Initial value: normal
• Applies to: All elements (also ::first-letter and ::first-line)
• Inherited: Yes
• Computed value: As specified
• Animation type: Discrete

Practical notes

• The property only has an effect if the font actually contains the corresponding alternate glyphs. Many modern CJK fonts support some of these features, but not all.
• It is part of the CSS Fonts Module Level 4 and is widely supported in modern browsers (Baseline Widely available).
• Common use cases include preferring traditional Chinese forms, selecting a specific Japanese JIS standard for historical or stylistic reasons, or ensuring consistent full-width rendering in certain layouts.

Example

.japanese-text {
  font-variant-east-asian: jis90 proportional-width;
}

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

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

In short, font-variant-east-asian gives fine-grained control over typographic conventions specific to East Asian writing systems without needing low-level OpenType feature tags.

which font, supports, Chinese traditional, and simplified for the CSS property font variant east Asian

ai answer

Fonts that work well with font-variant-east-asian: traditional / simplified (OpenType features trad / smpl) are limited, especially for full Chinese support.

Key facts about the CSS property

• font-variant-east-asian: traditional maps to the OpenType feature trad.
• font-variant-east-asian: simplified maps to the OpenType feature smpl.
• These features only take effect if the chosen font actually contains the alternate glyphs and implements the corresponding OpenType GSUB features. Many CJK fonts do not implement smpl/trad (they rely on separate language-specific fonts or the locl feature instead).

Practical recommendations

Recommended approach

1. Prefer language-specific fonts + lang attribute (most reliable):

   :lang(zh-Hans) {
     font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
   }
   :lang(zh-Hant) {
     font-family: "Noto Sans TC", "Source Han Sans TC", "PingFang TC", sans-serif;
   }

2. If you specifically need the CSS property (font-variant-east-asian: traditional or simplified):

   • Try Yu Gothic / Yu Mincho (or other high-quality Japanese system fonts that implement trad).
   • For Pan-CJK coverage, use Source Han Sans / Noto Sans CJK (Super OTC or language-specific OTFs) and test whether trad/smpl respond in your target browsers. Many deployments rely more on the locl feature activated by the lang attribute.

3. Testing tip: Always verify in the target browsers/OS because support for the OpenType features is font-dependent and not universal. The property itself has good browser support (Chrome 63+, Firefox 34+, Safari 9.1+), but the glyphs must exist in the font.

Bottom line:
For reliable support of both Traditional and Simplified Chinese, use the Source Han / Noto CJK family (language-specific or Super OTC versions) and control the orthography with the HTML lang attribute. Relying solely on font-variant-east-asian: traditional/simplified works only with fonts that explicitly implement the trad/smpl features (Yu Gothic is one of the few commonly available examples that does so for at least the traditional side).