<td colspan="2">Content here</td> // or... <td rowspan="2">Content here</td>
<td colspan="4">Content</td> <td rowspan="4">Content</td>
<table> <tr> <th>Month</th> <th>Savings</th> <th>Savings for holiday!</th> </tr> <tr> <td>January</td> <td>$100</td> <td rowspan="2">$50</td> </tr> <tr> <td>February</td> <td>$80</td> </tr> </table>