font-variant-east-asian

A property that controls specialized typographic features for East Asian writing systems, like Japanese and Chinese (e.g., Ruby characters).

It is documented as part of the CSS Fonts specification.

/* Usage Example */
rp {
  /* Stylizes ruby annotation parentheses */
  font-variant-east-asian: ruby;
}

/* Syntax */
font-variant-east-asian: normal;
font-variant-east-asian: ruby;

/* 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;
Widely available Since 2020 95% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2020.

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