ul {
font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif;
list-style-type:none;
margin:0px;
}
ul#emcul li{
display:inline; margin-right:10px;
}

ul#emcnavul a:hover {
background-image: url('http://www.emc-leren.nl/images/subnav-a-hover-back-turqoise.png');
}