#nav, #nav ul {
    font-family:arial; 
    font-size:11px;
    padding: 0;
    margin: 0;
    list-style: none;
}
#nav a {
    display: block;
    width: auto;
}
#nav li {
    background-color: #dfdfdf;
    color: black;
    float: left;
    width: auto;
}
#nav li ul {
    position: absolute;
    width: 155px;
    left: -999em;
    border: solid 1px grey;
    border-top: solid 0px grey;
    text-align: left;
}
#nav li ul li a {
    display: block;
    padding:4px;
    width: 147px;
    color: black;
    text-decoration: none;
    border-bottom: solid 1px grey;
}
#nav li ul li a:hover {
    display: block;
    background-color: grey;
    color: white;
}
#nav li:hover ul {
    left: auto;
}
#nav li:hover ul, #nav li.sfhover ul {
    left: auto;
}