ul#menu {
    font-family: Verdana, sans-serif;
    font-size: 11px;
    margin: 0;
    padding: 0;
    list-style: none;
}
 
ul#menu li {
    background-color: #5c7f91;
    border-bottom: 5px solid #778899;
    display: block;
    width: 150px;
    height: 30px;
    margin: 2px;
    float: left; /* elementi su singola riga */
}
 
ul#menu li a {
    color: #fff;
    display: block;
    font-weight: bold;
    line-height: 30px;
    text-decoration: none;
    width: 150px;
    height: 30px;
    text-align: center;
}
 
ul#menu li.active, ul#menu li:hover {
    background-color: #778899;
    border-bottom: 5px solid #696969;
}