#scheme {
	width: 920px;
	margin: 0px auto;
	border-collapse: collapse;
	border: 1px solid #DDA0DD;
	margin-top:10px;
	font-size:12px;
 }
#scheme .rowa {
	background:#ffffff;
	height: 10px;
}
#scheme .rowb {
	background:#ffffff;
	height: 10px;
}
#scheme .cell {
	padding:5px;
	border: 2px solid #DDA0DD;
	vertical-align:middle;
}