h1 {color: green;
	text-align: center}

html {background: #CBEEFA}

body {width: 900px; 
	margin: 0 auto; 
	border: 1px solid;
	background: white}
	
header {background: #3060D1;
	color: #FFFFFF;
	font: bold 50px Serif;
	text-align: center}

main {padding: 20px}

footer {text-align: center}

nav a {color: white;
	font: bold 20px Serif;
	text-decoration: none;
	padding: 20px}
	
nav a:hover {color: #CBEEFA}