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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html b/testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html new file mode 100644 index 0000000000..ec9eaa409f --- /dev/null +++ b/testing/web-platform/tests/css/css-will-change/will-change-fixedpos-cb-006.html @@ -0,0 +1,41 @@ +<!doctype html> +<meta charset="utf-8"> +<title>CSS Test: will-change: backdrop-filter on the root should not generate a containing block for fixed positioned elements.</title> +<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org"> +<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=960953"> +<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change"> +<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty"> +<link rel="match" href="will-change-fixedpos-cb-006-ref.html"> +<style> + html { + will-change: backdrop-filter; + } + body { + margin: 0; + } + .hidden { + width: 100px; + height: 100px; + background: red; + margin-left: 100px; + margin-top: 200px; + } + .fixedpos { + position: fixed; + top: 100px; + left: 100px; + background: green; + height: 100px; + width: 100px; + } + .spacer { + height: 2000px; + } +</style> +<!-- This object should be fully hidden by the fixed position object. --> +<div class="hidden"></div> +<div class="fixedpos"></div> +<div class="spacer"></div> +<script> + window.onload = function() { window.scrollTo(0, 100); }; +</script> |