body {
	font:15px arial,sans-serif;
}

.content {
	margin: 0 auto;
	width:905px;
	text-align: center;
}

.block {
	background-color: #ccc;
	border-radius: 5px;
	padding: 8px;
	margin-top: 50px;
}

li {
margin-top: 10px;
}

pre {
background-color: #eee;
	border-radius: 5px;
	padding: 8px;
	clear: both;
}