Re: [csswg-drafts] [css-view-transitions-1] Clarifications on stacking contexts (#8917)

> > ^ @chrishtr probably knows. IIRC he worked on the spec discussion + Blink implementation in this area.
> 
> Example in a spec:
> 
> https://drafts.fxtf.org/compositing-1/#pagebackdrop https://drafts.fxtf.org/compositing-1/#rootgroup

Doesn't that explicitly say that filters/opacity are not lifted up to apply to the canvas?

The 'Root Element Group' paints the background of the root element ([which always has a used value of 'transparent'](https://drafts.csswg.org/css-backgrounds/#root-background)), and then applies any filters/opacity specified for the root element.

Then the 'Root Group' paints the canvas, which includes any background that was specified for the root element (or possibly the <body> element). No filters or opacity get applied to this as far as I can see.



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Received on Thursday, 11 April 2024 20:51:45 UTC