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: 1.7em;
 vertical-align: middle;
 text-align: center;
 zoom: 1;
 border: 1px solid gray;
 border-bottom: 0;
 padding-top: 0;
 padding-left: 15px;
 padding-bottom: 0;
 width: 150px;
}

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;
 padding: 5px 3px 5px 5px;
 width: 100%;
}

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

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