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<!doctype html>
<meta charset="utf-8">
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<link rel="author" title="Aleks Totic" href="mailto:atotic@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-tables-3/#computing-the-table-height">
<style>
main table {
border-spacing: 0;
}
main td {
width: 50px;
height: 50px;
background: gray;
padding: 0;
}
</style>
<main>
<h1>Visibility collapse and overflow</h1>
<p>Collapsed row should not contribute to overflow</p>
<div id="row" style="overflow-y: auto; width: 200px; height: 100px;border:1px solid black;">
<table>
<tbody>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr style="visibility: collapse">
<td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<p>Collapsed section should not contribute to overflow</p>
<div id="section" style="overflow-y: auto; width: 200px; height: 50px;border:1px solid black;">
<table>
<thead>
<tr>
<td></td>
<td></td>
</tr>
</thead>
<tbody style="visibility:collapse">
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
</main>
<script>
test( _ => {
assert_equals(document.querySelector("#row").scrollHeight, 100);
}, "collapsed row should not contribute to overflow");
test( _ => {
assert_equals(document.querySelector("#section").scrollHeight, 50);
}, "collapsed section should not contribute to overflow");
</script>
</html>
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