ul#menu {
    font-family: calibri;
    font-size: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}
  
ul#menu li {
    background-color: #4F81BD;
    border-bottom: 7px solid #4F81BD;
    display: block;
    width: 85px;
    height: 23px;
    margin: 2px;
    float: left; /* elementi su singola riga */
}
  
ul#menu li a {
    color: #ffffff;
    display: block;
    font-weight: bold;
    line-height: 30px;
    text-decoration: none;
    width: 85px;
    height: 23px;
    text-align: center;
}
  
ul#menu li.active, ul#menu li:hover {
    background-color: #4F81BD;
    border-bottom: 7px solid #C0C000;
    font-size: 12px;
}

ul {
    padding-left: 20px;
}