Table with border=20:

<caption>Table Caption - Border Demo</caption>
<tr>
      <th>  Week:  </th>
      <th>  Topic  </td>
      <th>  Text/Assig.  </th>
</tr>

<tr>
      <td>6/29 &#150; 7/1</td>
      <td>Background of WWW</td>
      <td>Ch. 25-28</td>
</tr>

<tr>
     <td>7/6-7/8</td>
     <td>Performance issues</td>
     <td>&nbsp;</td>
</tr>
</table>