The CSSGroupingRule interface of the CSS Object Model represents any CSS at-rule that contains other rules nested within it.

Objects deriving from it:


The syntax is described using the WebIDL format.

interface CSSGroupingRule : CSSRule {
    readonly attribute CSSRuleList cssRules;
    unsigned long insertRule (DOMString rule, unsigned long index);
    void deleteRule (unsigned long index);

Properties common to all CSSGroupingRule instances

The CSSGroupingRule derives from CSSRule and inherits all properties of this class. It has one specific property:

CSSGroupingRule.cssRules Read only
Returns a CSSRuleList of the CSS rules in the media rule.


Inherits methods from its ancestor CSSRule.

Deletes a rule from the style sheet.
Inserts a new style rule into the current style sheet.


Specification Status Comment
CSS Object Model (CSSOM)
The definition of 'CSSGroupingRule' in that specification.
Working Draft Initial definition.

Browser compatibility

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See also