A table can be formatted to display complex structured data。
<table class="table table-celled table-structured">
<thead>
<tr>
<th rowspan="2">Name</th>
<th rowspan="2">Type</th>
<th rowspan="2">Files</th>
<th colspan="3">Languages</th>
</tr>
<tr>
<th>Ruby</th>
<th>JavaScript</th>
<th>Python</th>
</tr>
</thead>
<tbody>
<tr>
<td>Alpha Team</td>
<td>Project 1</td>
<td>2</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td rowspan="3">Beta Team</td>
<td>Project 1</td>
<td>52</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Project 2</td>
<td>12</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Project 3</td>
<td>21</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>