.left_module{
	float: left;
	margin-left: 15px;
	width: 350px;
	padding: 15px;
	background-color: White;
	border: 1px dotted #666699;
}
.right_module{
	margin-left: 400px;
	width: 350px;
	padding: 15px;
	background-color: White;
	border: 1px dotted #666699;
}