36 lines
941 B
HTML
36 lines
941 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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#outer:after { content: " "; clear:both; display: table; }
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#float {
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float: left; background-color: #ccc;
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height: 500px; width: 100%;
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}
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#inner { height: 100px; background-color: green; }
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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="float">
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<div id="changer"></div>
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<div id="inner"></div>
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</div>
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</div>
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</div>
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<div>after</div>
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<script>
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// Tests that we descend into zero-height containers that have floating content.
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test(() => {
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document.scrollingElement.scrollTop = 50;
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assert_equals(document.querySelector("#zeroheight").offsetHeight, 0);
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document.querySelector("#changer").style.height = "50px";
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assert_equals(document.scrollingElement.scrollTop, 100);
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}, "Zero-height container with float.");
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</script>
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