<ul id="navigation">
<li><a href="#">Home</a></li>
<li><a href="#">About Us</a></li>
<li><a href="#">Contact Us</a></li>
<li><a href="#">Products</a></li>
</ul>

 
#navigation {
	border:solid #111 1px; 
	border-left:none;
	border-right:none;
	padding:5px; 
}

#navigation li {
	display:inline;  
}

#navigation li a {
	font-family:Georgia, "Times New Roman", Times, serif; 
	font-size: 130%;
	text-transform:uppercase; 
	padding:5px 10px; 
	color:#111; 
	text-decoration:none;
}

#navigation li a:hover {
	background:#111; 
	color:#fff;
}