Re: [csswg-drafts] [selectors] Specify the "all ::-webkit-* pseudos are valid" behavior

In #3082, we have a proposal to use the reverse strategy regarding pseudo-elements: treat all unknown pseudo-elements (not just `-webkit`-prefixed) as potentially valid, _except_ pseudo-elements with other prefixes (most likely used for selector hacks). To me, this seems to be a good idea: it shouldn't break the compatibility (most existing hacks would be covered by the exception), and it would make adopting new features easier as authors wouldn't need to duplicate the entire style rule for the new selector.

Are there any pseudo-elements other than `-moz-`, `-ms-`, and probably `-o`-prefixed ones that were often used as a hack or otherwise were relied on _not_ being applied?

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Received on Friday, 7 September 2018 09:37:51 UTC