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Showing content from https://developer.cdn.mozilla.net/en-US/docs/Web/API/CSSFontPaletteValuesRule/name below:

CSSFontPaletteValuesRule: name property - Web APIs

CSSFontPaletteValuesRule: name property

Baseline Widely available

The read-only name property of the CSSFontPaletteValuesRule interface represents the name identifying the associated @font-palette-values at-rule. A valid name always starts with two dashes, such as --Alternate.

Value

A string beginning with two dashes.

Examples Read the at-rule's name

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 name.

HTML
<pre id="log">The @font-palette-values at-rule's name:</pre>
CSS
@import "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
const log = document.getElementById("log");

const rules = document.styleSheets[document.styleSheets.length - 1].cssRules;
const fontPaletteValuesRule = rules[1]; // a CSSFontPaletteValuesRule interface
log.textContent += ` ${fontPaletteValuesRule.name}`;
Result Specifications Browser compatibility See also

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