CSSRule.parentRule

The parentRule property of the CSSRule interface returns the containing rule of the current rule if this exists, or otherwise returns null.

Syntax

var parentRule = cssRule.parentRule

Values

parentRule

A CSSRule which is the type of the containing rules. If the current rule is inside a media query, this would return CSSMediaRule. Otherwise it returns null.

Example

@media (min-width: 500px) {
  .box {
    width: 100px;
    height: 200px;
    background-color: red;
  }

  body {
    color: blue;
  }
}
let myRules = document.styleSheets[0].cssRules;
let childRules = myRules[0].cssRules;
console.log(childRules[0].parentRule); // a CSSMediaRule

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
parentRule
1
12
1
9
≤12.1
1
1
18
4
≤12.1
1
1.0

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSRule/parentRule