How to collapse 2 row into 1 big <td>

Question

like.

name....sec.... .gender
..............................
rahim.....b.........m
......................
.....c.........m
...............................
hasan....d.........m
...............................

the dots are the borders of the table

Answer 1

Let's use rowspan attribute in HTML and vertical-align property in CSS.

<td rowspan="2" style="vertical-align:top">rahim</td>

The rowspan's value is the number of connection.
If you want to unify cells in horizontal direction, use colspan attribute.

<td colspan="3">header</td>