pre {
	background: #ddd;
	border: 1px solid #000;
	padding: 1px;
	margin-left: 50px;
	margin-right: 150px;
	display: block;
}

blockquote {
	background: #dfd;
	border: 1px solid #000;
	padding: 1px;
	margin-left: 50px;
	margin-right: 150px;
	display: block;
}

.lecture {
	display: table-row;
}

.date, .contents {
	display: table-cell;
	padding: 2px;
}

.date {
	font-weight: bold;
}

.contents h3 {
	font-size: 100%;
	font-weight: bold;
	margin-top: 0px;
}