HTML
<div id="Navigation">
<ul id="nav">
<li><a href="#">Item number 1</a></li>
<li><a href="#">Item number 2</a></li>
<li><a href="#">Item number 3</a></li>
<li><a href="#">Item number 4</a></li>
<li><a href="#">Item number 5</a></li>
</ul>
</div>

CSS
#Navigation ul
{
list-style-type: none;
font-family: "Tahoma", "MS UI Gothic","OSAKA";
}

#nav a
{
display: block;
padding: 5px;
width: 160px;
background-color: #006;
border-bottom: 1px solid #eee;
}

#nav a:link, #nav a:visited
{
color: #fff;
text-decoration: none;
}

#nav a:hover
{
background-color: #0cf;
color: #006;
}