34 lines
1 KiB
HTML
34 lines
1 KiB
HTML
<!DOCTYPE html>
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<title>Tests the calculation of negative auto margins of absolutely positioned element</title>
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<link rel="help" href="https://drafts.csswg.org/css-position/#abspos-margins">
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<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1492323">
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<link rel="author" href="mailto:xiaochengh@chromium.org">
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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/check-layout-th.js"></script>
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<style>
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.cb {
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position: relative;
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width: 400px;
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height: 400px;
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outline: 1px dashed black;
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}
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.target {
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writing-mode: vertical-lr;
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position: absolute;
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background: green;
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width: calc(100% - 100px);
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height: calc(100% - 100px);
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inset: 100px;
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margin: auto;
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}
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</style>
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<body onload="checkLayout('.target')">
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<div class="cb">
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<div class="target"
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data-expected-margin-top="-50" data-expected-margin-bottom="-50"
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data-expected-margin-left="0" data-expected-margin-right="-100"></div>
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</div>
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</body>
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