CSSFontFaceRule: style property
        
        
          
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      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.
Value
Examples
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.
css
@font-face {
  font-family: "MyHelvetica";
  src:
    local("Helvetica Neue Bold"), local("HelveticaNeue-Bold"),
    url("MgOpenModernaBold.ttf");
  font-weight: bold;
}
js
const myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].style); // A CSSStyleDeclaration
Specifications
| Specification | 
|---|
| CSS Fonts Module Level 4> # dom-cssfontfacerule-style> | 
Browser compatibility
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