.examples {
	clear: both;
	display: block;
	text-align: center;
	width: 720px;
	margin: 0 auto;
	padding: 20px 0;
	border-bottom: dashed 1px #989898;
	}

.example_table {
	width: 720px;
	background-color: #c0c0c0;
	}

td.cell_b {
	text-align: center;
	width: 100px;
	height: 60px;
	background-color: #ebf5ff;
	}

td.cell_c {
	text-align: center;
	width: 380px;
	height: 60px;
	background-color: #ffffff;
	}

td.cell_d {
	width: 240px;
	height: 180px;
	text-align: center;
	background-color: #ffffff;
	}