The CSSStyleDeclaration.parentRule read-only property returns a CSSRule that is the parent of this style block, e.g. a CSSStyleRule representing the style for a CSS selector.
var rule = styles.parentRule;
The CSS rule that contains this declaration block or null if this CSSStyleDeclaration is not attached to a CSSRule.
The following JavaScript code gets the parent CSS style rule from a CSSStyleDeclaration:
var declaration = document.styleSheets[0].rules[0].style; var rule = declaration.parentRule;
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleDeclaration/parentRule