body {
	padding: 20px;
	background: #999;
}

#centerer {
	margin: 0 auto;
	width: 600px;
	position: relative;
}

#navbar a {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

a.thumb {
	border: 2px solid #999;
	display: block;
	margin: 12px auto 0 auto;
}
a.thumb:hover, a.thumb:active {
	border: 2px solid #f39;
}
a.thumb:visited {
	border: 2px solid #c69;
}

#navbar {
	float: left;
	width: 250px;
	text-align: center;
}

#main_body {
	float: left;
	width: 350px;
}

#main_body img {
	display: block;
	margin: 0 auto 25px auto;
}