ul.dropdown, ul.dropdown li, ul.dropdown ul
{
    list-style: none;
    margin: 0;
    padding: 0;
}

ul.dropdown
{
    position: relative;
    z-index: 597;
    float: left;
}

ul.dropdown li
{
    float: left;
    line-height: 1.3em;
    vertical-align: middle;
}

ul.dropdown li.hover, ul.dropdown li:hover
{
    position: relative;
    z-index: 599;
    cursor: default;
}

ul.dropdown ul
{
    visibility: hidden;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 598;
    width: 100%;
}

ul.dropdown ul li
{
    float: none;
}

ul.dropdown ul ul
{
    top: 1px;
    left: 99%;
}

ul.dropdown li:hover > ul
{
    visibility: visible;
}