Menu navigatore orizzontale 7

<div id="contenitoremenu">
<ul id="listamenu">
<li id="elementoattivo"><a href="#">Home</a></li>
<li><a href="#">Chi sono</a></li>
<li><a href="#">Portfolio lavori</a></li>
<li><a href="#">Servizi</a></li>
<li><a href="#">Contatti</a></li>
</ul>
</div>

#contenitoremenu {
   padding-top: 5px;
   padding-right: 0px;
   padding-bottom: 5px;
   padding-left: 0px;
   height: 55px;
}

#listamenu {
   margin: 0px;
   padding: 0px;
}

#listamenu ul, #listamenu li {
   padding: 0px;
   display: inline;
   list-style-type: none;
   margin: 0px;
}

#listamenu a:link, #listamenu a:visited {
   float: left;
   line-height: 36px;
   font-weight: bold;
   text-decoration: none;
   color: #999;
   border: 3px solid #CCC;
   margin-top: 0px;
   margin-right: 8px;
   margin-bottom: 0px;
   margin-left: 0px;
   padding: 5px;
   width: 160px;
   text-align: center;
   text-transform: uppercase;
   -webkit-border-radius: 20px 40px 20px 40px;
   -moz-border-radius: 20px 40px 20px 40px;
   -khtml-border-radius: 20px 40px 20px 40px;
   border-radius: 20px 40px 20px 40px;
}
   
#listamenu a:hover, #listamenu a:active {
   line-height: 36px;
   font-weight: bold;
   text-decoration: none;
   color: #000;
   border: 3px solid #F30;
   margin-top: 0px;
   margin-right: 8px;
   margin-bottom: 0px;
   margin-left: 0px;
   padding: 5px;
   width: 160px;
   text-align: center;
}

#listamenu li#elementoattivo a:link, #listamenu li#elementoattivo a:visited {
   line-height: 36px;
   font-weight: bold;
   text-decoration: none;
   color: #999;
   border: 3px solid #F30;
   margin-top: 0px;
   margin-right: 8px;
   margin-bottom: 0px;
   margin-left: 0px;
   padding: 5px;
   width: 160px;
   text-align: center;
}

#listamenu li#elementoattivo a:hover, #listamenu li#elementoattivo a:active {
   line-height: 36px;
   font-weight: bold;
   text-decoration: none;
   color: #000;
   border: 3px solid #F30;
   margin-top: 0px;
   margin-right: 8px;
   margin-bottom: 0px;
   margin-left: 0px;
   padding: 5px;
   width: 160px;
   text-align: center;
}