.empty {
	width: 100%;
	border-style: none;
	border-width: 0;
	border-color: none;
	background-color: transparent;
	vertical-align: middle;
	text-align: center;
	font-family: sans serif;
	font-weight: normal;
	}
.nro {
	color: black;
	background: #eef;
	vertical-align: middle;
	}
.cell-1 {
	border-style: solid none none solid;
	border-width: medium thin thin medium;
	border-color: black;
	}
.cell-2 {
	border-style: solid none none solid;
	border-width: medium thin thin thin;
	border-color: black;
	}
.cell-3 {
	border-style: solid none none solid;
	border-width: medium medium thin thin;
	border-color: black;
	}
.cell-4 {
	border-style: solid none none solid;
	border-width: thin thin thin medium;
	border-color: black;
	}
.cell-5 {
	border-style: solid none none solid;
	border-width: thin thin thin thin;
	border-color: black;
	}
.cell-6 {
	border-style: solid none none solid;
	border-width: thin medium thin thin;
	border-color: black;
	}
.cell-7 {
	border-style: solid none none solid;
	border-width: thin thin medium medium;
	border-color: black;
	}
.cell-8 {
	border-style: solid none none solid;
	border-width: thin thin medium thin;
	border-color: black;
	}
.cell-9 {
	border-style: solid none none solid;
	border-width: thin medium medium thin;
	border-color: black;
	}
.sudoku	{
	empty-cells: show;
	border-style: none solid solid none;
	border-width: thin medium medium thin;
	border-color: black;
	}
.cell-1,
.cell-2,
.cell-3,
.cell-4,
.cell-5,
.cell-6,
.cell-7,
.cell-8,
.cell-9 {
	height: 2em;
	width: 2em;
	padding: 0;
	text-align: center;
	font-family: sans serif;
	font-weight: normal;
	}