.xuxian {
	border-top-width: 0px;
	border-top-style: dashed;
	border-right-style: dashed;
	border-bottom-style: dashed;
	border-left-style: dashed;
	border-top-color: #000000;
	border-right-color: #000000;
	border-bottom-color: #000000;
	border-left-color: #000000;
	border-right-width: 0px;
	border-bottom-width: 1px;
	border-left-width: 0px;
}

.xuxian2 {
	border-top-width: 1px;
	border-top-style: dashed;
	border-right-style: dashed;
	border-bottom-style: dashed;
	border-left-style: dashed;
	border-top-color: #000000;
	border-right-color: #000000;
	border-bottom-color: #000000;
	border-left-color: #000000;
	border-right-width: 1px;
	border-bottom-width: 1px;
	border-left-width: 1px;
}