To je moguce i vrlo lako napraviti,
Code:
<table border="1" summary="">
<tr>
<td width="25%">h1</td>
<td width="50%">h2</td>
<td width="25%">h3</td>
</tr>
<tr>
<td valign="top"><table border="1" cellspacing="1" summary="">
<tr>
<td>tabela za zelene linije</td>
</tr>
<tr>
<td>zelene linije</td>
</tr>
<tr>
<td>jos zelene</td>
</tr>
<tr>
<td>i jos zelene</td>
</tr>
<tr>
<td>i jos zelene</td>
</tr>
</table></td>
<td>Centar</td>
<td valign="top"><table border="1" cellspacing="1" summary="">
<tr>
<td height="25">Tabela za crvene linije</td>
</tr>
<tr>
<td height="45">crvene</td>
</tr>
<tr>
<td height="35">crvene</td>
</tr>
<tr>
<td height="60">crvene</td>
</tr>
</table></td>
</tr>
<tr>
<td>b1</td>
<td>b2</td>
<td>b3</td>
</tr>
</table>
Naravno notepadoliki editor rules.... a sa da ja tebi dam ocjenu iz znanja HTML na skali od 1 do 10 dajem ti 0