El login.php está dentro de una tabla.
Código HTML:
<body > <table border="1" cellpadding="0" cellspacing="0" width="100%" height="100%" align="center"> <tr> <td> <table border="1" cellpadding="0" cellspacing="0" width="1024" height="100%" align="center"> <tr> <td colspan="2"><?php include "header.php" ?></td> </tr> <tr><td colspan="2" width="1024" height="60"><?php include "menu.html"?></td></tr><!--AQUI VA EL MENU--> <tr> <td width ="150"> HOLA <?php include "login.php" ?> HOLA 2 </td><!--COLUMNA DE LOGIN--> <td width="874" height="100%"> <iframe width="100%" height="100%" name="mainframe" id="mainframe" frameborder="no" src="" allowtransparency="no" scrolling= "auto" valign="top"> </iframe> </td> </tr> <tr><td colspan="2" width="1024" height="60"><?php include "footer.php" ?></td> </tr><!--PIE--> </table> </td> </tr> </table> </body>