.bian1 {
	border-right-width: 1px;
	border-bottom-width: 1px;
	border-left-width: 1px;
	border-top-style: none;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-right-color: e2e2e2;
	border-bottom-color: e2e2e2;
	border-left-color: e2e2e2;
}
.bian2 {
	border: 1px solid e2e2e2;
}