descent-override CSS at-rule descriptor
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The descent-override CSS descriptor for the @font-face at-rule defines the descent metric for the font. The descent metric is the height below the baseline that CSS uses to lay out line boxes in an inline formatting context.
Syntax
css
descent-override: normal;
descent-override: 90%;
Values
normal-
The default value. When used the metric value is obtained from the font file.
<percentage>-
A
<percentage>value.
Formal definition
| Related at-rule | @font-face |
|---|---|
| Initial value | normal |
| Percentages | as specified |
| Computed value | as specified |
Formal syntax
descent-override =
[ normal | <percentage [0,∞]> ]{1,2}
Examples
Overriding metrics of a fallback font
The descent-override property can help when overriding the metrics of a fallback font to better match those of a primary web font.
css
@font-face {
font-family: "web-font";
src: url("https://example.com/font.woff");
}
@font-face {
font-family: "local-font";
src: local("Local Font");
descent-override: 125%;
}
Specifications
| Specification |
|---|
| CSS Fonts Module Level 4 # font-metrics-override-desc |
Browser compatibility
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Legend
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