
Put the CSS in the head section of the webpage.
CSS :
<style>
/* Begin Horizontal Menu Bar Styling */
#nav
{
width: 100%;
float: left;
margin: 0 0 3em 0;
padding: 0;
list-style: none;
background-color: #e2e2e2;
border-bottom: 1px solid #ccc;
border-top: 1px solid #ccc;
}
#nav li
{
float: left;
}
#nav li a
{
display: block;
padding: 8px 15px;
text-decoration: none;
font-weight: bold;
color: #000;
border-right: 1px solid #ccc;
}
#nav li a:hover
{
color: #c00;
background-color: #fff;
}
/* End Horizontal Menu Bar styling. */
</style>
HTML :
<ul id="nav">
<li><a href="#">Home</a></li>
<li><a href="#">About Us</a></li>
<li><a href="#">Our Service</a></li>
<li><a href="#">FAQs</a></li>
<li><a href="#">Contact</a></li>
</ul>