An object implementing the CSSConditionRule interface represents a single condition CSS at-rule, which consists of a condition and a statement block.
Three objects derive from CSSConditionRule: CSSMediaRule, CSSContainerRule and CSSSupportsRule.
Inherits properties from its ancestors CSSGroupingRule and CSSRule.
CSSConditionRule.conditionText Read onlyRepresents the text of the condition of the rule.
Inherits methods from its ancestors CSSGroupingRule and CSSRule.