Table cells that span more than one row/column: HTML

Example:

1: Column span

<table border="1">
  <tr>
    <th>Name</th>
    <th colspan="2">Contact No:</th>
  </tr>
  <tr>
    <td>Alen</td>
    <td>111 222 3333</td>
    <td>111 222 4444</td>
  </tr>
</table>

Output (Column span):

Name	Contact No:
Alen	111 222 3333	111 222 4444

2: Row span

<table border="1">
  <tr>
    <th rowspan="2">Cell 1.1+Cell 2.1</th>
    <td>Cell 1.2</td>
    <td>Cell 1.3</td>
  </tr>
  <tr>
    <td>Cell 2.2</td>
    <td>Cell 2.3</td>
  </tr>
</table>

Output (Row span):

Cell 1.1+Cell 2.1	Cell 1.2	Cell 1.3
	Cell 2.2	Cell 2.3