#contieni_nav{
	width: 650px;
	margin: auto;
	padding: 0px;
}
#nav {
	padding: 0px;
	float: left;
	margin: auto;
	list-style-type: none;
	clear: both;
	background-color: #FFFFFF;
	z-index: 100;
	width: 96%;
}


#nav ul , li{
	float: right;
	list-style: none;
	margin: 0px;
	padding: 0px;
	text-align: justify;
	
}
#nav li {
	margin: 0px;
	padding: 0px;
	float: left;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	color: #003366;
	font-weight: bold;
	font-size: 12px;
	text-decoration: none;
	background-position: center;
}
#nav li a {
	display: block;
	padding: 0px;
	padding-top: 3px;
	font-weight: normal;
	text-decoration: none;
	font-size: 12px;
	margin: 0px;
	text-align: left;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	color: #003366;
	font-weight: bold;
	font-size: 12px;
	text-decoration: none;
	background-position: center;

}
#nav li a:hover {
	color: #003366;
}
#nav li div.descrizione {
	display: none;
	position: absolute;
	top: 238px;
	left: 30%;
	margin-left: -4px;
	padding: 0px;
	padding-bottom: 5px;
	list-style-type: none;
	clear: both;
	margin-bottom: -5px;
	z-index: 200;
	
}
#nav li:hover div.descrizione, #nav li.over div.descrizione {
	display: block;
	width: 500px;
	background-color: White;
	border-style: solid;
	border-width: 2px;
	border-color: #B24838;
	padding: 2px;
}