The call to assert_not_inherited('margin-trim', 'none', 'all') uses a property value that was in an old version of the spec (all). This is not longer in the spec and should be replaced with another value
<rdar://problem/103383727>
Pull request: https://github.com/WebKit/WebKit/pull/7666
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/37518
Committed 257903@main (07575d8d452f): <https://commits.webkit.org/257903@main> Reviewed commits have been landed. Closing PR #7666 and removing active labels.