[selectors-4]Why Pseudo-elements cannot be represented by the :is()/:matches()? (original) (raw)
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[selectors-4]Why Pseudo-elements cannot be represented by the :is()/:matches()?
#2284
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Pseudo-elements cannot be represented by the matches-any pseudo-class; they are not valid within :matches().
https://www.w3.org/TR/2018/WD-selectors-4-20180201/#matches
Safari support :matches(::before)
The :matches() has now been renamed to :is()
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