thanks for introducing these changes! just double-checking before I adjust declarations..
the markup is:
<table>
<thead>
<tr>
<th>
<tbody>
<tr>
<td>
and respective classes are/will be:
.topic-list
.topic-list-header
(tr will be dropped here?)
.topic-list-data
.topic-list-body
.topic-list-item
.topic-list-data