42 lines
976 B
HTML
42 lines
976 B
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>CSS Overflow: ::scroll-button on root element activation</title>
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<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
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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="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-actions.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<style>
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body {
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margin: 0;
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}
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:root::scroll-button(block-end) {
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content: "down";
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position: absolute;
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top: 0;
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}
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div {
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width: 600px;
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height: 300px;
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margin-bottom: 20px;
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background: green;
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}
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</style>
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<div></div>
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<div></div>
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<div></div>
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<script>
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promise_test(async t => {
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await new test_driver.Actions()
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.pointerMove(10, 10)
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.pointerDown()
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.pointerUp()
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.pointerDown()
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.pointerUp()
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.send();
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assert_equals(window.scrollY, 360);
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});
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</script>
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