Ti ringrazio, ecco l'html

Codice PHP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="it">
<head>
<title>Pagine</title>
<link href="css/struttura.css" rel="stylesheet" type="text/css" />
<link href="css/classi.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="header">
</div>
<div id="contenitore">
<div id="menusx">
<ul class="menu">[*][url="index.htm"]Home[/url][*][url="#"]Dove Siamo[/url][*][url="#"]Chi Siamo[/url][/list]
</div>
<div id="menudx">
</div>
<div id="corpo">
<h1>
Titolo
</h1>
<h2>
Sottotitolo
</h2>





Testo paragrafo
</p>


<div id="footer">
</div>
</div>
</body>
</html>