55 lines
1.1 KiB
HTML
55 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Animations: Dependent property updates correctly when animating a declared custom property</title>
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<link rel="help" href="https://drafts.csswg.org/css-animations/">
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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="support/testcommon.js"></script>
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<style>
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@property --c {
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syntax: "<color>";
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inherits: true;
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initial-value: black;
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}
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@keyframes color-shift {
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0% {
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--c: black;
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}
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100% {
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--c: white;
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}
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}
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#target {
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color: var(--c);
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animation: color-shift 1s linear 1 forwards paused
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}
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</style>
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<div id=target></div>
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<div id="log"></div>
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<script>
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test(t => {
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const animation = target.getAnimations()[0];
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assert_equals(
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getComputedStyle(target).color,
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'rgb(0, 0, 0)'
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);
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animation.currentTime = 500;
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assert_equals(
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getComputedStyle(target).color,
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'rgb(128, 128, 128)'
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);
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animation.currentTime = 1000;
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assert_equals(
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getComputedStyle(target).color,
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'rgb(255, 255, 255)'
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);
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}, 'Dependent property updates correctly');
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</script>
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