<!DOCTYPE html>
<style>
table {
border-collapse: collapse;
border-spacing: 0px;
}
td, th {
padding: 0px;
}
thead, tr, tfoot {
break-inside: avoid;
}
</style>
<p>crbug.com/656232: A nested table header group repeats on each page.</p>
<div style="-webkit-columns:3; line-height: 20px; column-fill: auto; height:190px;">
<table id="top">
<thead id="top-thead">
<tr>
<th>Col 1</th>
</tr>
</thead>
<tr><td>
<br>
<table id="next">
<thead id="next-thead">
<tr>
<th>Col 1</th>
<th>Col 2</th>
</tr>
</thead>
<tbody>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
<tr><td>Te</td><td>xt</td></tr>
</tbody>
<tfoot>
<tr>
<th>Ft 1</th>
<th>Ft 2</th>
</tr>
</tfoot>
</table>
</td></tr>
</table>
</div>