1739819 - [wpt-sync] Sync PR 26352 - Test that border-image-width extends into padding given no border area (e.g. via border-style: none)

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 26352 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/26352
Details from upstream follow.

Tyler Wilcock <[e-mail]> wrote:

Test that border-image-width extends into padding given no border area (e.g. via border-style: none)

When there is no border area (e.g. resulting from border-style: none), border-images with border-image-width should render into the padding / content area of the box.

Spec: https://www.w3.org/TR/2017/CR-css-backgrounds-3-20171017/#propdef-border-image-width

Editorial of the spec: https://github.com/w3c/csswg-drafts/issues/655#issuecomment-331059128

(emphasis mine)

Since by default a border image is only drawn in the border area, by default a border-style of none will make it disappear. However, the border-image-outset and border-image-width values can alter the “border” area into which the border image is drawn, extending it into the padding area (in the case of border-image-widths greater than the border-width) or extending it outside the border edge (in the case of border-image-outset greater than zero).

WebKit and Gecko exhibit this behavior, Chromium does not.

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=9f311da6520078aa8877049803bb07f78b6de989

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/48de0b101bda
[wpt PR 26352] - Test that border-image-width extends into padding given no border area (e.g. via border-style: none), a=testonly

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Test result changes from PR not available.

Comment 4

[Cristina Cozmuta (:CrissCozmuta)]

https://hg.mozilla.org/mozilla-central/rev/48de0b101bda