.nav {
width: 140px;
height: 24px;
background-color: #FFF;
background-image: none;
border: 1px solid #FF9900;
text-align: center;
}

.nav a, .nav a:link, .nav a:active, .nav a:visited {
font-family: Arial, Helvetica, sans-serif;
font-size: 16px;
font-weight: bold;
color: #FF9900;
text-decoration: none;
text-align: center;
display: block;
width: 140px;
height: 21px;
padding-top: 3px;
}

.nav a:hover {
background-image: url("images/nav_bg.gif");
}