[Bug 17590] [Shadow]: Consider specifying semantics for @host in <style scoped>

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17590

--- Comment #2 from Dominic Cooney <dominicc@chromium.org> 2012-07-02 07:07:17 UTC ---
(In reply to comment #1) 
> To style contents, distributed to insertion points, you have only one method:
> /select/ reference combinator.

The spec contains this language:

"CSS rules declared in a shadow DOM subtree must not apply in the document
tree"

I think an exception needs to be carved out for @host rules and rules using
/select/.

There is a quasi-exception in the form of a conflicting requirement for @host:

"The declarations in the @host @-rule must be applied to the shadow host of the
shadow DOM subtree in which the style is specified."

But I think the first requirement needs to be articulated to mention @host and
/select/. It would be nice if the CSS application algorithm could specify all
of this too.

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Received on Monday, 2 July 2012 07:07:22 UTC