It should be something like this
https://i.sstatic.net/6vXW4.png
The layout should consist of 4 rows and 3 columns. In the first column, the center cell should span 2 cells. The second column should have only one row. And the third column should replicate the structure of the first.
This is the code I currently have:
<table border="1" width="100%">
<thead></thead>
<tbody>
<tr>
<td>1</td>
<td rowspan="4">2</td>
<td>3</td>
</tr>
<tr>
<td rowspawn="2">4</td>
<td rowspawn="2">5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
</tr>
</tbody>
</table>However, the current display looks like this: https://i.sstatic.net/D9pmc.png