#area_a, #area_b {
	height: 90px;
	padding: 4px;
}
table {
	border-collapse: collapse;
}
tr.tr1 {
	background-color: #d4e1f5;
}
tr.tr4 {
	background-color: #d5e8d4;
}
tr.tr2, tr.tr3{
	background-color: #ffffcc;
}
td {
	width: 90px;
	height: 90px;
	border: 1px solid #83165c;
}
td.dragenter{
	background-color: #ffffff;
}
img.ui-draggable {
	cursor: pointer;
}
img.ui-draggable-disabled{
	cursor: default !important;
}