ul#main-menu li {
float: left;
position:relative;
z-index:90000000;
}

ul#main-menu li.arrow {
	background: url(../gfx/arroww.gif) no-repeat;
	background-position: 180px 10px;
}

ul#main-menu li:hover > ul {
visibility: visible;
}

ul#main-menu ul {
vertical-align: middle;
visibility: hidden;
opacity: .9;
position: absolute;
top: 25px;
left: 0;
background-color: #173f56;
}

ul#main-menu ul ul {
	position: absolute;
	opacity: 1;
	top: 0;
	left: 201px;
}

ul#main-menu ul.first-drop-down {
	left: -10px;	
}

ul#main-menu ul.last-drop-down {
	left: auto;
	right: -10px;	
}

ul#main-menu ul li {
float: none;
margin: 0;
padding: 6px 10px;
display: block;
width: 180px;
border-bottom: 1px solid #ffffff;
}

ul#main-menu ul ul li {
float: none;
margin: 0;
padding: 6px 10px;
display: block;
width: 240px;
border-bottom: 1px solid #ffffff;
}