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

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

ul.dropdown li {
 float: left;
 line-height: normal;
 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;
}