LAU

<ul id="button-3">
 <li id="active-button-3"><a href="#">Renoir</a></li>
 <li><a href="#">Monet</a></li>
 <li><a href="#">Manet</a></li>
 <li><a href="#">Sisley</a></li>
 <li><a href="#">Degas</a></li>
</ul>

#button-3{
width:200px;
margin:0;
padding:0;
font: 90% Verdana;
}
#button-3 ul{
list-style:none;
margin:0;
padding:0;
}
#button-3 a{
display:block;
text-decoration:none;
padding:7px 10px;
margin:0;
background:#fff;
color:#009;
font-size:1.1em;
border-bottom: 1px solid #fff;
}
#button-3 li{
display:inline;
}
#button-3 a{
height:auto!important;
height:0;
}
#button-3 a:link, 
#button-3 a:visited{
background:#600 url(elenco.png) 
	10px 11px no-repeat;
color:#fff;
padding-left:28px;
}
#button-3 a:hover, 
#button-3 a:focus,
#button-3 a:active{
background:#000 url(elenco-hover.png) 
	10px 11px no-repeat;
color:#fff;
}
#button-3 #active-button-3 a{
background:#000 url(elenco-hover.png) 
	10px 11px no-repeat;
color:#fff;
}