.maincontent {
	font-family: Verdana, Geneva, sans-serif;
	color: #FFF;
	width: 900px;
	margin-right: auto;
	margin-left: auto;
}
.top_content {
	height: 598px;
	width: 900px;
}
.header {
	width: 900px;
	margin-right: auto;
	margin-left: auto;
}
.nav {
	font-family: Verdana, Geneva, sans-serif;
	color: #FFF;
	font-size: 10px;
	height: 100px;
	width: 900px;
}
.navigation {
	font-family: Verdana, Geneva, sans-serif;
	color: #FFF;
	text-align: center;
	position: absolute;
	width: 900px;
	margin-top: 170px;
	vertical-align: middle;
}