body{
	background-color:#006400;
	margin:0;
	font-family:arial, verdana, sans-serif;
	}
nav{
	background-color:#000000;
	text-align:center;
	height:64px;
}
nav a{
	color:#FFFFFF;
	text-decoration:none;
	font-size:18px;
	padding:20px;
	display:inline-block;
	outline:none;
}
nav a:hover {
	background-color:#FF0000;
}
h1{
	text-align:center;
}