[css-cascade] Can we use @scope for style isolation?

[bramus]

CSS @scope is for selector isolation, not style isolation. Properties that inherit will inherit onto children beyond the scope’s scoping limit. From a lot of authors I hear that they expected it to be about style isolation.

I was wondering if it would be possible to extend @scope to do style isolation too – something I believe would be very helpful for web component authors.

Maybe a prelude like isolated? E.g. @​scope isolated (root) to (limit) { /* no authors styles get in or bleed out */ }.
Or maybe there need to be two flags? One to prevent styles from getting in, and one to prevent them from bleeding out?

[romainmenke]

What does "bleed" mean exactly in the context of this issue?
I assume that inheritance would still work the same?

[bramus]

With it I mean to stop inheritance at the set scoping limit (if any).

[romainmenke]

Maybe a revert-scope keyword would be better?
This seems very similar to all: revert and all: revert-layer.