[HTML] colspan, border 테두리 가로 병합

 <table border="1" width="500" height="120">
 <tr heignt="40">
 <td width="100">123</td>
 <td width="100">123</td>
 <td>123</td>
 <td>123</td>
 </tr>
 
  <tr>
 <td>123</td>
 <td>123</td>
 <td>123</td>
 </tr>
 
 
 <br>
 <table border="1" height="90">
<tr>
<td width="200" colspan="2">1,2</td>
<td width="100">3</td>
<td width="100">4</td>
</tr>
<tr >
<td width="100">5</td>
<td width="100">6</td>
<td width="100">7</td>
<td width="100">8</td>
</tr>
<tr >
<td width="100">9</td>
<td width="100">10</td>
<td width="100">11</td>
<td width="100">12</td>
</tr>
 </table>
 
 </body> 
 </html>