div.mainpic{
margin-top: 10pt;
}
div.mainpart{
margin-top: 5pt;
min-height:500px;
}
nav {
    width: 671px;
    margin-top: 75px;
}
nav ul {
    padding: 0px;
    margin: 0px;
}

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

nav ul,nav ul li{
    background-color: #FFFFFF;
    z-index: 100;
}
nav ul li {
    list-style: none;
    float:left;
    border-right: 1px solid #dfdfdf;
}
nav ul li a {
    text-decoration: none;
    font-size: 10pt;
    font-family: verdana;
    display: block;
    color: #004C66;
    padding: 10px 20px 10px 20px;

    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: #E6DD00;
}
nav ul li.cat2:hover a, nav ul li.cat2:hover > ul li a  {
    background-color: #8CB302;
}
nav ul li.cat3:hover a, nav ul li.cat3:hover > ul li a {
    background-color: #008C74;
}
nav ul li.cat4:hover a, nav ul li.cat4:hover > ul li a {
    background-color: #004C66;
}
nav ul li.cat5:hover a, nav ul li.cat5:hover > ul li a {
    background-color: #332B40;
}

nav ul li:hover > a {
    color: #FFFFFF;
}
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: #FFFFFF;
}
nav ul li ul li a:hover{
        color: #004C66;
        background-color: #FFFFFF !important;
}