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Re: [csswg-drafts] [css-conditional-3] [css-fonts-4] Allow CSS.supports('font-family: system-ui') for feature detection

From: Koji Ishii via GitHub <sysbot+gh@w3.org>
Date: Tue, 11 Oct 2016 14:20:08 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-252930612-1476195606-sysbot+gh@w3.org>
Spec-wise, `CSS.supports` defines:
> value would be successfully parsed as a supported value for that 

and `system-ui` is a valid 
 so it should return true.

A function syntax as suggested by @upsuper might work, but probably 
the first thing to discuss is what are the cases where cascading 
 cannot solve but `CSS.supports` can. Do you have any examples in 

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Received on Tuesday, 11 October 2016 14:20:18 UTC

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