.menu {
	margin: 0;
	padding: 0;
	list-style: none;
	background: #fff;
	width:760px;
}

.menu li {
	padding: 0;
	margin: 0;
	height: 100px;
	
	list-style: none;
	background-repeat: no-repeat;
}
.menu li a, .menu li a:visited {
	display: block;
	text-decoration: none;
	text-indent: -5000px;
	height: 100px;
	background-repeat: no-repeat;
}
.seminar {background-image: url(images/over_1.png); width: 172px;}
.seminar a {background-image: url(images/menu_1.png);}
.program {background-image: url(images/over_2.png); width: 158px;}
.program a {background-image: url(images/menu_2.png);}
.speakers {background-image: url(images/over_3.png); width: 135px;}
.speakers a {background-image: url(images/menu_3.png);}
.enroll {background-image: url(images/over_4.png); width: 158px;}
.enroll a {background-image: url(images/menu_4.png);}
.partners {background-image: url(images/over_5.png); width: 137px;}
.partners a {background-image: url(images/menu_5.png);}

ul.menu li a:hover {background: none;}
.menu li {float: left;}
.menu:after {content: "."; display: block; height: 0; clear: both; visibility: hidden;}