Re: [csswg-drafts] [selectors-4] :defined

Can I get a layperson's definition of :defined and what it's used for? :)

Wrt :heading(), we've gotten requests for this an declined them so far. If it's something we want to add, we can add it to Selectors--it's definitely not an HTML-specific concept, so it should go into Selectors and not HTML.

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Received on Friday, 2 February 2018 22:50:27 UTC