<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 {
	padding: 5px 10px ;
	margin-left: 0px;
	color: #fff;
	border-bottom: 1px solid #778;
}

#navigation li {
	display:inline;	
}

#navigation li a{
	padding: 5px 10px;
	color: #448;
	background: #DDE;
	text-decoration:none;
	border: 1px solid #778;
	border-bottom: none;
	font-weight:bold;
}

#navigation li a:hover
{
	color: #000;
	background: #AAE;
}