The parentRule
property of the CSSRule
interface returns the containing rule of the current rule if this exists, or otherwise returns null.
CSSRule.parentRule
Value
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.
Examples
@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
Specification |
---|
CSS Object Model (CSSOM) # dom-cssrule-parentrule |
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
|
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https://developer.mozilla.org/en-US/docs/Web/API/CSSRule/parentRule