Re: [csswg-drafts] [css-ui] Hide proprietary appearance values #3968 (#3985)

I suppose UAs aren't allowed to support values that aren't listed in the Value grammar, but this isn't particularly clear (to me, at least). From the spec change here, a possible interpretation is that non-standard values should continue to work in author CSS but getting their value from `getComputedStyle()` should give `auto`.

I don't think authors should be able to set `appearance` to non-standard values.

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Received on Thursday, 6 June 2019 21:47:00 UTC