30 lines
790 B
HTML
30 lines
790 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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#outer { width: 300px; }
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#zeroheight { height: 0px; }
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#changer { height: 100px; background-color: red; }
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#bottom { margin-top: 600px; }
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</style>
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<div id="outer">
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<div id="zeroheight">
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<div id="changer"></div>
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<div id="bottom">bottom</div>
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</div>
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</div>
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<script>
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// Tests that the anchor selection algorithm descends into zero-height
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// containers that have overflowing content.
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test(() => {
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document.scrollingElement.scrollTop = 200;
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document.querySelector("#changer").style.height = "200px";
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assert_equals(document.scrollingElement.scrollTop, 300);
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}, "Zero-height container with visible overflow.");
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</script>
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