files/en-us/web/api/cssfontfeaturevaluesrule/fontfamily/index.md
{{ APIRef("CSSOM") }}
The fontFamily property of the {{domxref("CSSFontFeatureValuesRule")}} interface represents the name of the font family it applies to.
A string.
In this example, we declare two {{cssxref("@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.
<pre id="log"></pre>
/* 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);
}
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}".`;
{{EmbedLiveSample("read_font_family", "100%", "75px")}}
{{Specifications}}
{{Compat}}