`ascent-override` CSS at-rule descriptor

Baseline Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The ascent-override CSS descriptor for the @font-face at-rule defines the ascent metric for the font. The ascent metric is the height above the baseline that CSS uses to lay out line boxes in an inline formatting context.

Syntax

ascent-override: normal;
ascent-override: 90%;

Values

normal: The default value. When used the metric value is obtained from the font file.
<percentage>: A <percentage> value.

Formal definition

Formal syntax

Examples

Overriding metrics of a fallback font

The ascent-override property can help when overriding the metrics of a fallback font to better match those of a primary web font.

@font-face {
  font-family: "web-font";
  src: url("https://example.com/font.woff");
}

@font-face {
  font-family: "local-font";
  src: local("Local Font");
  ascent-override: 125%;
}

Specifications

Specification
CSS Fonts Module Level 4 # font-metrics-override-desc

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`ascent-override`	87	87	89	73	preview	87	89	62	No	14.0	87	No