body{
	font-family: sans-serif;
	color: black;
}
ul{
	margin: 0px;
	padding: 0px;
	list-style: none;
}
ul li{
	float: left;
	width: 200px;
	height: 40px;
	background-color: black;
	opacity: .5;
	line-height: 50px;
	text-align: center;
	font-size: 20px;
}
ul li a{
	text-decoration: none;
	color: white;
	display: block;

}
ul li a:hover{
	background-color: #666;
}