CSSFontPaletteValuesRule: fontFamily property
The read-only fontFamily
property of the CSSFontPaletteValuesRule
interface lists the font families the rule can be applied to. The font families must be named families; generic families like courier
are not valid.
Value
A string containing a space-separated list of the font families on which the rule can be applied
Examples
Read the associated font family
This example first defines an @import
and an @font-palette-values
at-rule. Then it reads the @font-palette-values
rule and displays its name. As these rules live in the last stylesheet added to the document, the palette will be the second CSSRule
returned by the last stylesheet in the document (document.styleSheets[document.styleSheets.length-1].cssRules
). So, rules[1]
returns a CSSFontPaletteValuesRule
object, from which we can access fontFamily
.
HTML
html
<pre id="log">
The @font-palette-values at-rule's applies to the font families:</pre
>
CSS
css
@import url(https://fonts.googleapis.com/css2?family=Bungee+Spice);
@font-palette-values --Alternate {
font-family: "Bungee Spice";
override-colors: 0 #00ffbb, 1 #007744;
}
.alternate {
font-palette: --Alternate;
}
JavaScript
js
const log = document.getElementById("log");
const rules = document.styleSheets[document.styleSheets.length - 1].cssRules;
const fontPaletteValuesRule = rules[1]; // a CSSFontPaletteValuesRule interface
log.textContent += ` ${fontPaletteValuesRule.fontFamily}`;
Result
Specifications
Specification |
---|
CSS Fonts Module Level 4 # dom-cssfontpalettevaluesrule-fontfamily |
Browser compatibility
BCD tables only load in the browser
See also
@font-palette-values
at-rulefont-family
descriptor