body{
	background: #ffffff;
}
#centered {
	width: 800px;
	height: 600px;
}
#container {
	position: absolute;
	top: 50%;
	left: 50%;
	margin-top: -300px;
	margin-left: -400px;
}
#portfolio {
	margin: 0 auto;
	padding: 0 auto;
}