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<!DOCTYPE html>
<link rel="author" title="David Shin" href="mailto:dshin@mozilla.com">
<link rel="help" href="http://www.w3.org/TR/CSS21/tables.html#collapsing-borders">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1819266">
<meta name="assert" content="This test checks that collapsed border does not paint outside of its expected area.">
<style>
table {
display: inline-table;
border-collapse: collapse;
}
td {
border: 10px solid black;
line-height: 0;
padding: 0;
}
span {
display: inline-block;
width: 10px;
height: 10px;
background: grey;
}
.spacer-1 tr:not(:last-child) td {
border-bottom: 12px solid black;
}
.spacer-2 tr:not(:last-child) td {
border-bottom: 15px solid black;
}
.spacer-3 tr:not(:last-child) td {
border-bottom: 20px solid black;
}
</style>
<table>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
</table>
<table class="spacer-1">
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
</table>
<table class="spacer-2">
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
</table>
<table class="spacer-3">
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
<tr><td><span></span></td><td><span></span></td></tr>
</table>
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