.bian {
	border: 1px solid #DBDBDB;
}
.lbian {
	border-top-width: 1px;
	border-right-width: 1px;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: none;
	border-left-style: none;
	border-top-color: #DBDBDB;
	border-right-color: #DBDBDB;
}