42 lines
1.2 KiB
HTML
42 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<title>Unrelated style mutation does not affect anonymous timeline</title>
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<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-notation">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/scroll-animations/scroll-timelines/testcommon.js"></script>
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<script src="/css/css-animations/support/testcommon.js"></script>
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<script src="support/testcommon.js"></script>
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<style>
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@keyframes anim {
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from { z-index: 100; }
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to { z-index: 100; }
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}
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#scroller {
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overflow: auto;
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width: 100px;
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height: 100px;
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}
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#element {
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animation: anim forwards;
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animation-timeline: scroll();
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}
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#spacer {
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height: 200px;
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}
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</style>
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<div id=scroller>
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<div id=element></div>
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<div id=spacer></div>
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</div>
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<script>
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setup(assert_implements_animation_timeline);
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promise_test(async () => {
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await waitForCSSScrollTimelineStyle();
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assert_equals(getComputedStyle(element).zIndex, '100');
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// Unrelated style mutation does not change the effect value:
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element.style.color = 'green';
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assert_equals(getComputedStyle(element).zIndex, '100');
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});
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</script>
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