CSSFontFeatureValuesRule: swash property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The read-only swash property of the CSSFontFeatureValuesRule interface contains a CSSFontFeatureValuesMap object representing the developer-provided name and feature index for a variable font which supports swash().
Value
A CSSFontFeatureValuesMap object.
Although the swash property itself is read-only in the sense that you can't replace the CSSFontFeatureValuesMap object, you can still assign to the swash property directly. You can also modify the values of the swash using the CSSFontFeatureValuesMap instance methods.
Example
Basic usage
CSS
css
@font-feature-values "MonteCarlo" {
@swash {
my-swashes: 1; /* Custom name for a particular set of swash alternate glyphs */
}
}
JavaScript
js
// look for the first stylesheet and the first cssRule in that sheet
const myRule = document.styleSheets[0].cssRules[0];
// check
if (myRule instanceof CSSFontFeatureValuesRule && myRule.swash.size) {
// do something with the swash
}
Specifications
| Specification |
|---|
| CSS Fonts Module Level 4 # dom-cssfontfeaturevaluesrule-swash |
Browser compatibility
See also
@swashswash()functional notationCSSFontFeatureValuesMap