CSSStyleDeclaration.parentRule - Web APIs 编辑

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.

Syntax

var rule = styles.parentRule;

Value

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

Example

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;

Specifications

Browser compatibility

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