CSSFontFeatureValuesRule: fontFamily property
Baseline
2025
Newly available
Since March 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The fontFamily property of the CSSFontFeatureValuesRule interface represents the name of the font family it applies to.
Value
A string.
Examples
Read font family
In this example, we declare two @font-feature-values one for the Font One font family, and the other for Font Two. We then use the CSSOM to read these font families, displaying them into the log.
html
<pre id="log"></pre>
CSS
css
/* At-rule for "nice-style" in Font One */
@font-feature-values Font One {
@styleset {
nice-style: 12;
}
}
/* At-rule for "nice-style" in Font Two */
@font-feature-values Font Two {
@styleset {
nice-style: 4;
}
}
/* Apply the at-rules with a single declaration */
.nice-look {
font-variant-alternates: styleset(nice-style);
}
JavaScript
js
const log = document.getElementById("log");
const rules = document.getElementById("css-output").sheet.cssRules;
const fontOne = rules[0]; // A CSSFontFeatureValuesRule
log.textContent = `The 1st '@font-feature-values' family: "${fontOne.fontFamily}".\n`;
const fontTwo = rules[1]; // Another CSSFontFeatureValuesRule
log.textContent += `The 2nd '@font-feature-values' family: "${fontTwo.fontFamily}".`;
Specifications
| Specification |
|---|
| CSS Fonts Module Level 4 # dom-cssfontfeaturevaluesrule-fontfamily |
Browser compatibility
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fontFamily
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