files/en-us/web/api/cssfontfacerule/style/index.md
{{APIRef("CSSOM")}}
The read-only style property of the {{domxref("CSSFontFaceRule")}} interface returns a {{domxref("CSSFontFaceDescriptors")}} object representing the descriptors available in the {{cssxref("@font-face")}} rule's body.
A {{domxref("CSSFontFaceDescriptors")}} object.
Although the style property itself is read-only in the sense that you can't replace the CSSFontFaceDescriptors object, you can still assign to the style property directly, which is equivalent to assigning to its {{domxref("CSSStyleDeclaration/cssText", "cssText")}} property. You can also modify the CSSFontFaceDescriptors object using the {{domxref("CSSStyleDeclaration/setProperty", "setProperty()")}} and {{domxref("CSSStyleDeclaration/removeProperty", "removeProperty()")}} methods.
This example uses the CSS found as an example on the {{cssxref("@font-face")}} page. The first {{domxref("CSSRule")}} returned will be a CSSFontFaceRule. The style property returns a {{domxref("CSSFontFaceDescriptors")}} object 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.woff2");
font-weight: bold;
}
const myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].style); // A CSSFontFaceDescriptors
{{Specifications}}
{{Compat}}