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FontFace: ascentOverride property

The ascentOverride property of the FontFace interface returns and sets the ascent metric for the font, the height above the baseline that CSS uses to lay out line boxes in an inline formatting context.

This property is equivalent to the @font-face/ascent-override descriptor of @font-face.

Value

A string. The possible values are normal, indicating that the metric used should be obtained from the font file, or a percentage.

This property accepts the same values as the @font-face/ascent-override descriptor.

Examples

js

let fontFace = new FontFace(
  "Roboto",
  "url(https://fonts.example.com/roboto.woff2)",
  { ascentOverride: "90%" },
);
console.log(fontFace.ascentOverride); // 90%
fontFace.ascentOverride = "normal";
console.log(fontFace.ascentOverride); // 'normal'

Specifications

Specification
CSS Font Loading Module Level 3
# dom-fontfacedescriptors-ascentoverride

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
ascentOverride 87 87 89 No 73 No 87 87 89 62 No 14.0

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https://developer.mozilla.org/en-US/docs/Web/API/FontFace/ascentOverride