1758490 - Implement CSS Containment content-visibility: hidden

Status: RESOLVED FIXED

(Core :: Layout, enhancement)

Description

[Martin Robinson (email:[e-mail])]

https://drafts.csswg.org/css-contain-2/#content-visibility

The content-visibility property controls whether or not an element renders its contents at all, along with forcing a strong set of containments, allowing user agents to potentially omit large swathes of layout and rendering work until it becomes needed. It has the following values:

The hidden value is specified as:

hidden
The element skips its contents. The skipped contents must not be accessible to user-agent features, such as find-in-page, tab-order navigation, etc., nor be selectable or focusable.

Comment 1

[Martin Robinson (email:[e-mail])]

While it's possible that there are still bugs and enhancements to make regarding content-visibility: hidden, I think it is safe to consider this feature complete.