This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The read-only style property of the CSSFontFaceRule interface returns the style information from the @font-face at-rule. This will be in the form of a CSSStyleDeclaration object.
This example uses the CSS found as an example on the @font-face page. The first CSSRule returned will be a CSSFontFaceRule. The style property returns a CSSStyleDeclaration with the properties fontFamily, fontWeight, and src populated with the information from the rule.
@font-face {
font-family: MyHelvetica;
src:
local("Helvetica Neue Bold"), local("HelveticaNeue-Bold"),
url("MgOpenModernaBold.ttf");
font-weight: bold;
}
const myRules = document.styleSheets[0].cssRules; console.log(myRules[0].style); // A CSSStyleDeclaration
| Specification |
|---|
| CSS Fonts Module Level 4> # dom-cssfontfacerule-style> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
style |
1 | 12 | 3.5 | ≤12.1 | 3.1 | 18 | 4 | ≤12.1 | 2 | 1.0 | 4.4 | 2 |
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https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFaceRule/style