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Test Info:

<!DOCTYPE html>
<title>position:relative top constraint should behave correctly for &lt;tbody&gt; elements</title>
<link rel="match" href="position-relative-table-top-ref.html" />
<meta name="assert" content="This test checks that the position:relative top constraint behaves correctly for &lt;tbody&gt; elements" />
<style>
table {
border-collapse:collapse;
}
td {
padding: 0;
}
td > div {
height: 50px;
width: 50px;
}
.group {
display: inline-block;
position: relative;
width: 150px;
height: 200px;
}
.indicator {
position: absolute;
background-color: red;
left: 0;
top: 100px;
height: 50px;
width: 50px;
}
.relative {
position: relative;
top: 50px;
background-color: green;
}
.absolute {
position: absolute;
top: 50px;
background-color: green;
}
</style>
<div class="group">
<div>
<div class="indicator"></div>
<table>
<tbody class="relative">
<tr><td><div class="absolute"></div></td></tr>
</tbody>
</table>
</div>
</div>
<div>You should see a green box above. No red should be visible.</div>