nav {
    width: 100%;
}
nav ul {
    padding: 2px;
    margin: 0px 0px 0px 0px;

    box-shadow: 0px 0px 0px #dfdfdf;
    -moz-box-shadow: 0px 0px 0px #dfdfdf;
    -webkit-box-shadow: 0px 0px 0px #dfdfdf;
}

nav ul:after {
    clear: both;
    content: "";
    display: block;
    font-size: 0;
    height: 0;
    visibility: hidden
}

nav ul, nav ul li{
    background-color: #FAFAFA;
}
nav ul li {
    list-style: none;
    floatleft;
    border-right: 0px solid #dfdfdf;
}
nav ul li a {
    text-decoration: none;
    display: block;
    color: #333;
    padding: 0px 0px 0px 0px;

    transition: background 0.3s ease-out; /* explorer 10 */
    -webkit-transition: background 0.3s ease-out; /* chrome & safari */
    -moz-transition: background 0.3 ease-out; /* firefox */
    -o-transition: background 0.3 ease-out; /* opera */
}

nav ul li.cat1:hover a, nav ul li.cat1:hover > ul li a  {
    background-color: #000000;
    text-decoration:none;
    margin: 0px 0px 0px 0px;
}

nav ul li:hover > a {
    color: #fafafa;
}
nav ul li:hover > ul {
    visibility: visible;
}

nav ul li ul{
    display: inline;
    visibility: hidden;
    position: absolute;
    padding:0px;
}
nav ul li ul li{
  float: none;
}
nav ul li ul li a {
    color: #FAFAFA;
}
nav ul li ul li a:hover{
  color: #333;
  background-color: #fafafa !important;
}