ul {
	list-style-type: none;
}

.top {
	position: fixed;
	left: 0;
	right: 0;
	top: 0;
	z-index: 999;
	height: 50px;
	background-color: rgba(0, 0, 0, 0.6);
}

.menu {
	width: 1000px;
	margin: 0 auto;
	overflow: hidden;
}


.nav {
	float: right;
	margin-top: 10px;
	font-size: 0;
}

.nav li {
	display: inline-block;
	margin-left: 40px;
}

.nav a {
	display: inline-block;
	height: 30px;
	line-height: 30px;
	font-size: 12px;
	color: #fff;
	text-decoration: none;
}

.nav a:hover {
	color: #83c3f3;
}