32 lines
947 B
HTML
32 lines
947 B
HTML
<!DOCTYPE html>
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<title>CSS Values and Units Test: line-height transition affecting lh units</title>
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<link rel="help" href="https://www.w3.org/TR/css-values-4/#lh">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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#target {
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width: 20lh;
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line-height: 10px;
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transition: line-height 1s;
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}
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#target.lh {
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line-height: 20px;
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}
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</style>
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<div id="target"></div>
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<script>
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let t = async_test("lh unit length should change with transitioning line-height");
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t.step(() => {
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target.offsetTop;
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target.className = "lh";
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});
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requestAnimationFrame(() => requestAnimationFrame(() => requestAnimationFrame(() => {
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t.step(() => {
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assert_not_equals(getComputedStyle(target).width, "200px");
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assert_not_equals(getComputedStyle(target).width, "400px");
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t.done();
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}, "Transition should be progressing. Not at start/end.");
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})));
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</script>
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