Trying to center-align a simple input button within a table cell has been quite the challenge.
The following is the current markup:
<table width="500" border="1">
<tr>
<td width="390">XXXXXXXXX</td>
<td width="110" rowspan="2" valign="middle"><input type="button" value="submit"></td>
</tr>
<tr>
<td>YYYYYYYY</td>
</tr>
</table>
<br /><br />
<div style="width:500px;">
<div style="float:left;width:390px;">
<div>XXXXXXX</div>
<div>YYYYYYY</div>
</div>
<div style="vertical-align:middle;width:110px;float:right;">
<div><input type="button" value="submit"></div>
</div>
</div>
An illustration of the desired layout can be seen in the table version. Keep in mind that the text represented by "XXXXX" or "YYYYYY" can vary in length.