Re: [w3ctag/design-reviews] CSS overflow: clip and overflow-clip-margin (#579)

On Mon, Feb 15, 2021 at 4:33 PM Peter Linss <notifications@github.com>
wrote:

> Looked at this today with @hober <https://github.com/hober> and have two
> points of feedback:
>
>    1.
>
>    It seems odd to constrain the overflow-clip-margin to the overflow:
>    clip case. Wouldn't an additional margin also make sense in the overflow:
>    hidden state?
>
>
As the "overflow: hidden" case is still scrollable (programatically), I
don't think it makes sense to support the overflow-clip-margin there.


>
>    1.
>    2.
>
>    Adding another high-level feature that has the same behavior as
>    another high-level feature with the exception of a low-level detail seems
>    like an anti-pattern that CSS is guilty of in multiple places. Examples are
>    other properties that cause the generation of stacking contexts or
>    containing blocks, and are often used just for those side-effects (e.g. position:
>    relative with no offsets). Many of these cases would be better served
>    by a direct control of the lower-level feature, e.g. "make this a stacking
>    context", or "make this a containing block". We're wondering if it doesn't
>    make more sense to have an individual control of whether something is a
>    scroll container and use that feature in conjunction with overflow:
>    hidden to get the overflow: clip behavior.
>
>
If we were to introduce another property, then we would end up
contradicting configurations. For example, 'overflow: scroll;' and
'scrollable: false' ?

  -Scott

>
>    1.
>
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