The rows attribute specifies the visible height of a text area, in lines.
<textarea rows="4" cols="50">
4 rows and 50 cols
</textarea>
basic table structure
<table>
<tr>
<td>15</td>
<td>15</td>
<td>30</td>
</tr>
<tr>
<td>45</td>
<td>60</td>
<td>45</td>
</tr>
<tr>
<td>60</td>
<td>90</td>
<td>90</td>
</tr>
</table>