Simplemente he copiado y pegado lo q has pasado... :
Código PHP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<body>
<table width="100%" height="100%" border="3" cellpadding="0" cellspacing="0">
<tr>
<td height="100%" align="center" valign="middle">Gracias por ayudarme!! :D</td>
</tr>
</table>
</body>
</html>