body {
	margin: 0px;
}
.bk {
	border-top-width: 3px;
	border-right-width: 3px;
	border-bottom-width: 3px;
	border-left-width: 3px;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: none;
	border-left-style: solid;
	border-top-color: #E6E6E6;
	border-right-color: #E6E6E6;
	border-bottom-color: #E6E6E6;
	border-left-color: #E6E6E6;
}
.dk {
	border-bottom-width: 1px;
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: dashed;
	border-left-style: none;
	border-bottom-color: #E6E6E6;
}

.xbk {
	border: 2px solid #E6E6E6;
}