*{
	margin:0;
	padding:0;
}
nav {
	width:100%;
	height:60px;
	background-color:#ffffff;
}
nav ul{
	float:left;
}

nav ul li{
	float:left;
	list-style:none;
	position:relative;
}

nav ul li a{
	display:block;
	font-family:arial;
	color:#222;
	font-size:14px;
	padding: 11px 10px;
	text-decoration:none;
}

nav ul li ul{
	display:none;
	position:absolute;
	background-color:#fff;
	padding:10px;
	border-radius: 0px 0px 4px 4px;
}

nav ul li:hover ul{
	display:block;
}
nav ul li ul li {
	width:180px;
}
nav ul li ul li a{
	padding: 8px 14px;
}

nav ul li ul li a:hover{
	background-color:#f3f3f3;
}