Open Bug 1841456 Opened 2 years ago Updated 2 months ago

Implement overlay property

Categories

(Core :: CSS Parsing and Computation, enhancement)

enhancement

Tracking

()

REOPENED
Size Estimate M

People

(Reporter: sebo, Assigned: connor.pearson)

References

(Blocks 1 open bug, )

Details

(Keywords: dev-doc-needed, Whiteboard: [platform-feature])

User Story

web-feature: overlay

Attachments

(2 files)

The CSS Positioned Layout Module Level 4 specification defines an overlay property that allows control over whether an element is rendered in the top layer.

It is a special property that can only be set by the browser and not by authors. Authors can use it in transitions, though.

This bug is meant to implement this property.

Sebastian

Assignee: nobody → connor.pearson
Status: NEW → ASSIGNED
Pushed by ealvarez@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/92742dd015ca Part 1: Use auto instead of top in -moz-top-layer to match overlay. r=emilio,desktop-theme-reviewers
Status: ASSIGNED → RESOLVED
Closed: 1 year ago
Resolution: --- → FIXED
Target Milestone: --- → 134 Branch

Hi Serban, there's still another part that needs to be merged before this is complete. Should we re-open this bug or is it best to create a new linked bug?

Flags: needinfo?(sstanca)

Hi Connor! We can reopen this for now.

Status: RESOLVED → REOPENED
Flags: needinfo?(sstanca)
Resolution: FIXED → ---
Target Milestone: 134 Branch → ---
See Also: → 1971162
User Story: (updated)
Whiteboard: [platform-feature]

[setting a size-estimate of "medium" -- on its own this is probably "small", but in order to be useful (and pass some of the WPT tests on the interop proposal), this probably requires bug 1834877 to be fixed as well.]

Size Estimate: --- → M
Duplicate of this bug: 2020875
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