<!--表格table 行tr,列td-->
<table border="1px">
<tr>
<!--colspan跨列-->
<td colspan="4">1-1</td>
</tr>
<tr>
<!--rowspan跨行-->
<td rowspan="2">2-1</td>
<td>2-2</td>
<td>2-3</td>
<td>2-4</td>
</tr>
<tr>
<td>3-1</td>
<td>3-2</td>
<td>3-3</td>
</tr>
</table>