.txt {
    font-size: 12px;
    color: #FFF;
    text-decoration: none;
    font-weight: bold;
    font-family: Arial, Tahoma
    }
.specializzazione {
    text-decoration: none;
    font-size: 12px;
    color: #FFF;
    font-family: Tahoma, Arial, Verdana
    }
.specializzazione:hover {
    color: #900;
    font-family: Tahoma, Arial, Verdana;
    font-size: 12px;
    text-decoration: none
    }