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CSSNestedDeclarations: style property

Baseline 2024
Newly available

Since ⁨December 2024⁩, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The read-only style property of the CSSNestedDeclarations interface represents the styles associated with the nested rules.

Value

An object.

Examples

This stylesheet contains a nested cssRules.

The first console.log shows the top-level style, the second shows the nested @media query with its nested style and the final shows the nested style declared after the @media query.

.foo {
  font-size: 1.2rem;
  @media screen {
    color: tomato;
    background-color: darkgrey;
  }
  color: black;
}
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].style);
// { "0": "font-size" }
console.log(myRules[0].cssRules[0].cssRules[0].style);
// { "0": "color", "1": "background-color" }
console.log(myRules[0].cssRules[1].style);
// { "0": "color" }

Specifications

Browser compatibility

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 130 130 132 115 18.2 130 132 86 18.2 28.0 130 18.2

See Also

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSNestedDeclarations/style