[csswg-drafts] [mediaqueries] definition of video width and height (#5043)

frivoal has just created a new issue for https://github.com/w3c/csswg-drafts:

== [mediaqueries] definition of video width and height ==
The [definition](https://drafts.csswg.org/mediaqueries-4/#video-width) of the `video-width` media feature (same thing for `video-height`) includes this:

>    For continuous media, this is the width of the viewport (as described by CSS2, section 9.1.1 [[!CSS21]]) including the size of a rendered scroll bar (if any). For paged media, this is the width of the page box (as described by CSS2, section 13.2 [[!CSS21]]).

That text comes from the definition of width, but I don't think it is relevant here: I don't think there currently exists such a thing as a paginated media with a dedicated video plane (or a paginated video plane being itself paginated).
On the other hand, we should add a mention that this is about the size of the entire video plane, not the layout-dependent portion of it that is being clipped and composited with the rest of the page.

Therefore, I suggest deleting the sentence quoted above, and instead, inserting the following one:
> This represents the width of the entire video plane, and does not depend on layout. Any masking or clipping controlled by the web page is not taken into account.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/5043 using your GitHub account

Received on Tuesday, 5 May 2020 09:42:17 UTC