.nav ul {
 *zoom: 1;
	list-style: none;
	margin: 0;
	padding: 0;
	background: #007fd9;
}
.nav ul:before, .nav ul:after {
	content: "";
	display: table;
}
.nav ul:after {
	clear: both;
}
.nav ul > li {
	float: left;
	position: relative;
}
.nav a {
	display: block;
	padding: 10px 20px;
	line-height: 1.2em;
	color: #fff;
	border: 1px solid #595959;
	text-decoration:none;
	font-size:14px;
	font-weight:bold;
}
.nav a:hover {
	text-decoration: none;
	background: #ffff35;
	color:#333;
}
.nav li ul {
	background: #007fd9;
	margin:3px 0 0 0;
}
.nav li ul li {
	width: 200px;
}
.nav li ul a {
	border:#595959 solid 1px;
}
.nav li ul a:hover {
	background:#ffff35;
	color:#333;
}
.nav4 ul > li:hover ul li {
	max-height: 160px;
}
.nav4 li ul {
	position: absolute;
	left: 0;
	top: 36px;
	z-index: 1;
}
.nav4 li ul li {
	overflow: hidden;
	max-height: 0;
	-webkit-transition: max-height 500ms ease;
	-moz-transition: max-height 500ms ease;
	-o-transition: max-height 500ms ease;
	transition: max-height 500ms ease;
}