/* CSS レイアウト */
#masthead {
	width: 680px;
	height: auto;
	background-image: url('wallppr024.gif');
}
#top_nav {
	width: 680px;
	height: 50px;
}
#page_content {
	padding: 0px;
	margin: 0px;
	width: 680px;
	text-align: center;
	height: 317px;
	background-image: url('wallppr024.gif');
	vertical-align: central;
}
#footer {
	width: 680px;
	height: 380px;
	clear: both;
}
#top_nav ul {
	padding: 0px;
	margin: 0px;
	list-style-type: none;
	height: 45px;
	position: relative;
}
#top_nav li {
	float: left;
	text-align: center;
	padding: 0px;
	margin: 2px;
	width: 108px;
	height: 1.8em;
	background-color: #CFE8FE;
	vertical-align: middle;
}
#header {
	width: 680px;
	height: 280px;
}