body {
	font-size:100%;
	word-break:break-all;
	line-height:1.4;
	text-align:center;
	color:#000000;
	margin:0;
	padding:0;
}

#body {
	text-align:left;
	margin-left:auto;
	margin-right:auto;
	width:800px;
}

#header {
	margin:0;
	padding:0;
	margin-bottom:10px;
}

#contents {
	width:640px;
	padding:0;
	margin-left:auto;
	margin-right:auto;
}

#footer {
	text-align:right;
	font-size:75%;
	margin-top:15px;
}

#contents div.page_description {
	margin-bottom:10px;
	margin-left:auto;
	margin-right:auto;
  font-size:90%;
}

#contents div.book {
	margin-bottom:15px;
	margin-left:auto;
	margin-right:auto;
	padding-bottom:15px;
	border-bottom:1px #000000 solid;
}

#contents div.book_title {
	margin-bottom:10px;
}

#contents div.videos {
	margin-bottom:10px;
}

#contents div.video {
	margin-bottom:10px;
}

#contents div.video_description {
  font-size:90%;
}

#contents div.book_link {
	padding-top:10px;
	padding-bottom:10px;
}