table {
	border-collapse: separate;
	border-spacing: 10px;
	border: 3px solid #000000;
}
td {
	border: 2px solid #000000;
	width: 100px;
	height: 100px;
	vertical-align: middle;
	color: #009966;
	font-family: Impact, sans-serif;
	font-size: 120%;
	text-align: center;
}
td#show {
	empty-cells: show;
	border-color: #cc3300;
}td#hide {
	empty-cells: hide;
}