CSSConditionRule

CSSConditionRule 对象表示单个条件 CSS 规则, 由条件和语句块组成。继承至 CSSGroupingRule.

从它派生的两个对象 : CSSMediaRule and CSSSupportsRule.

Syntax

The syntax is described using the WebIDL format.

interface CSSConditionRule : CSSGroupingRule {
    attribute DOMString conditionText;
}

The CSSConditionRule derives from CSSRule, CSSGroupingRule and inherits all properties of these classes. It has one specific property:

CSSConditionRule.conditionText: Represents the text of the condition of the rule.

The CSSConditionRule derives from CSSRule, CSSGroupingRule and inherits all methods of these classes. It has no specific property of its own.

Specification	Status	Comment
CSS Conditional Rules Module Level 3 CSSConditionRule	Candidate Recommendation	Initial definition.

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`CSSConditionRule`	Chrome Full support 56	Edge Full support Yes	Firefox Full support 20	IE No support No	Opera Full support 43	Safari ?	WebView Android Full support 56	Chrome Android Full support 56	Firefox Android Full support 20	Opera Android Full support 43	Safari iOS ?	Samsung Internet Android ?