CSSStyleDeclaration.parentRule 只读特性返回 CSSRule that is the parent of this style block , e.g. a CSSStyleRule representing the style for a CSS selector.

句法

var rule = styles.parentRule;
					

The CSS rule that contains this declaration block or null 若此 CSSStyleDeclaration is not attached to a CSSRule .

范例

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;
					

规范

规范 状态 注释
CSS Object Model (CSSOM)
The definition of 'CSSStyleDeclaration.parentRule' in that specification.
工作草案
Document Object Model (DOM) Level 2 Style Specification
The definition of 'CSSStyleDeclaration' in that specification.
过时

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据
桌面 移动
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
parentRule Chrome 1 Edge 12 Firefox 1 IE Yes Opera Yes Safari 6 WebView Android 4.4 Chrome Android 18 Firefox Android 4 Opera Android Yes Safari iOS Yes Samsung Internet Android 1.0

图例

完整支持

完整支持

元数据

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