body {
	background-image: url(img/back.jpg);
	margin: 0px;
}
#header-wrap {
	background-image: url(img/header.jpg);
	width: 720px;
	height: 250px;
	margin: 0px auto;
}
#content-wrap {
	background-image: url(img/content-back.jpg);
	width: 720px;
	margin: 0px auto;
}
#content {
	width: 540px;
	margin: 0px auto;
	padding: 20px 0px;
}
#nav {
	width: 540px;
	margin: 0px auto;
	text-align: center;
}
#nav a {
	font-size: 17px;
	font-weight: bold;
}