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Diffstat (limited to 'testing/web-platform/tests/css/css-will-change/will-change-stacking-context-backdrop-filter-1.html')
-rw-r--r-- | testing/web-platform/tests/css/css-will-change/will-change-stacking-context-backdrop-filter-1.html | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-will-change/will-change-stacking-context-backdrop-filter-1.html b/testing/web-platform/tests/css/css-will-change/will-change-stacking-context-backdrop-filter-1.html new file mode 100644 index 0000000000..0081e93c4f --- /dev/null +++ b/testing/web-platform/tests/css/css-will-change/will-change-stacking-context-backdrop-filter-1.html @@ -0,0 +1,37 @@ +<!doctype html> +<meta charset="utf-8"> +<title>CSS Test: will-change: backdrop-filter should create a stacking context.</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="green-square-100-by-100-ref.html"> +<style> + html, body { margin: 0; } + .indicator { + position: absolute; + background-color: green; + z-index: 1; + } + .willchange { + will-change: backdrop-filter; + z-index: 0; + } + .child { + position: relative; + background-color: red; + z-index: 2; + } + .box { + width: 100px; + height: 100px; + } +</style> + +<div class="indicator box"></div> +<div class="willchange box"> + <!-- Because will-change: backdrop-filter creates a stacking context, this + child remains on bottom even though it has a higher z-index than the + indicator box. --> + <div class="child box"></div> +</div> |