<declaration>
#8795
Description
<declaration>
is only used in the prelude of @supports
:
<supports-in-parens> = ( <supports-condition> ) | <supports-feature> | <general-enclosed> <supports-feature> = <supports-decl> <supports-decl> = ( <declaration> )
<supports-decl>
should evaluate to true
if the UA supports the <declaration>
in a style rule.
I would like to clarify if unknown-property: var(--custom)
or color: invalid-value
match <declaration>
or <general-enclosed>
.
In #8127, I proposed to define <style-feature>
(in the prelude of @container
) with <declaration> | <ident>
but this seemed to be a problem for some people. It was preferred that <general-enclosed>
match the above inputs, to avoid storing an invalid declaration.
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