CSSRule Properties

Container query list array (for rules involving container queries). The array enumerates container queries starting with the innermost one, going outwards.

Cascade layer array. Contains the layer hierarchy that this rule belongs to starting with the innermost layer and going outwards.

Media list array (for rules involving media queries). The array enumerates media queries starting with the innermost one, going outwards.

Parent stylesheet's origin.

Rule selector data.

Associated style declaration.

The css style sheet identifier (absent for user agent stylesheet and user-specified stylesheet rules) this rule came from.

@supports CSS at-rule array. The array enumerates @supports at-rules starting with the innermost one, going outwards.