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23 lines
615 B
HTML
23 lines
615 B
HTML
<!DOCTYPE html>
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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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body { height: 4000px; }
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div { height: 100px; }
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</style>
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<div id="block1">abc</div>
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<div id="block2">def</div>
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<script>
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// Tests that growing an element above the viewport produces a scroll
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// anchoring adjustment equal to the amount by which it grew.
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test(() => {
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document.scrollingElement.scrollTop = 150;
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document.querySelector("#block1").style.height = "200px";
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assert_equals(document.scrollingElement.scrollTop, 250);
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}, "Minimal scroll anchoring example.");
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</script>
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