[css-cascade-6] :scope and featureless elements

[andruud]

• With @scope (:host), you can make the shadow host a scoping root.
• Since :scope is defined to match the scoping root, it would then be able to match that element, even if it's featureless.

Or would it?

Selectors:

A featureless element does not match any selector at all, except those it is explicitly defined to match (and logical combination pseudo-classes representing those selectors).

Specs appear to be saying that @scope (:host) { :scope { ... } } would match, except that they aren't explicitly saying this.

Should we state this explicitly?

@mirisuzanne @tabatkins

[tabatkins]

Yes, it needs to be explicitly stated. (And hm, Nesting probably needs to say that too...)

[andruud]

@astearns Proposed async resolution: :scope can match the featureless shadow host when that host is the scoping element.

[astearns]

The CSSWG will automatically accept this resolution one week from now if no objections are raised here. Anyone can add an emoji to this comment to express support. If you do not support this resolution, please add a new comment.

Proposed Resolution: :scope can match the featureless shadow host when that host is the scoping element.

[astearns]

RESOLVED: :scope can match the featureless shadow host when that host is the scoping element.