ReadonlyaReadonlybReadonlyconditionReadonlydelegationReadonlyparentReadonlyregionIdentity of the declaration block being parsed, for revert-rule.
ReadonlyscopeReadonlyvalidatorOptionalmodifier: AttributeSelectorCaseSensitivityProtectedendtrue if this takes a forgiving selector list (:is/where)
true unless this is :where()
ProtectedinsertStatement form of the @layer rule (@layer a, b;), which only declares
the layer order.
Protectedmaketrue unless this is :not()
For relational pseudo-class :has() support
true if this is :has()
The name of the function taking a selector list as argument
Optionalparams: (string | number)[]Optional parameters (e.g., [a, b] for nth-child(An+B of S))
Block form of the @layer rule.
null for an anonymous layer, otherwise the parts of the
<layer-name>.
Cascade Parser Handler for :nth-child(An+B of S) pseudo-class parameter