#class_nav {
	width:220px;
	margin-top: 0px;
	margin-right: auto;
	margin-bottom: auto;
	margin-left: auto;
}
#class_nav li{
	background-image: url(../images/class2.gif);
	width: 220px;
	background-repeat: no-repeat;
	background-position: center top;
	}
#class_nav a.main_class{
	background-repeat: no-repeat;
	display: block;
	text-decoration: none;
	line-height: 29px;
	font-size: 13px;
	width: 185px;
	padding-left: 35px;
	background-image: url(images/ico--.gif);
	background-position: 3px 7px;
	height: 30px;
	overflow: hidden;
	font-weight: normal;
	color: #333333;
}
#class_nav a.main_class:hover{
	text-decoration: none;
	color: #FF3300;
	background-image: url(../images/class1.gif);
	background-repeat: no-repeat;
	background-position: center top;
}
#class_nav ul{
padding-top:5px;
padding-bottom:5px;
}
#class_nav ul li {
	width: 220px;
	background-image: none;
	line-height: 20px;
	height: 20px;
	overflow: hidden;
}
#class_nav ul li a{
	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	line-height: 20px;
	text-decoration: none;
	background-image: url(images/subclass_icon.gif);
	background-repeat: no-repeat;
	background-position: 15px 2px;
	clear: both;
	display: block;
	height: 25px;
	padding-left: 35px;
	width: 185px;
	overflow: hidden;
	font-weight: normal;
	color: #333333;
}
#class_nav ul li a:hover{
	text-decoration: underline;
	color: #FF3300;
}
#class_nav ul.class_nav_s{
display:none;
}