header {
	width: 900px; 
	height: 74px; 
	background-color: darkblue; 
}
body { 
	background-color: #f8f8f6; 
	line-height: 1.7; 
	font-size: 15px; 
	font-family: Lucida Sans Typewriter,Lucida Console,monaco,Bitstream Vera Sans Mono,monospace; 
}
.content {
	max-width: 500px;
	margin: auto;
	padding: 10px;
}