.left_bottom {
	border-bottom-width: 2px;
	border-left-width: 2px;
	border-bottom-style: dotted;
	border-left-style: dotted;
	border-bottom-color: #999999;
	border-left-color: #999999;
	border-right-width: 2px;
	border-right-style: dotted;
	border-right-color: #999999;
}