Re: [csswg-drafts] [css-ui] Disallow internal pseudo-elements and 'appearance' values (#3968)

Well there's also no spec for those pseudo-elements, and `getComputedStyle` previously only supported `::before` and `::after`. But you're right that this is not strictly about the `appearance` property.

What I tried to address here is the concern raised at the 2018 TPAC f2f, about what `getComputedStyle()` should return for pseudo-elements where the UA stylesheet has a value that's not specified. Then I thought only `::before` and `::after` was supported, and therefore there was no problem. But CSSOM now allows any pseudo-element it seems.

I can file a new issue for CSSOM to discuss this.

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Received on Monday, 27 May 2019 12:20:02 UTC