Re: [csswg-drafts] anything that creates a stacking context should sort in the positioned descendants z-ordering list

Gecko also implements parts of `contain` behind a flag.

Also, [the WG resolved that `filter` should be a containing block for abs-pos and fixed-pos descendants](https://www.w3.org/2015/02/10-fx-minutes.html#action02).

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Received on Friday, 1 June 2018 03:56:17 UTC