.sudoku {
	margin: 16px auto;
	border: medium solid black;
	font-family: Arial, Helvetica, sans-serif;
	font-size: large;
	font-weight: bold;
	background-color: white;
	color: darkgreen;
}
.sudoku tr {
	border: thin solid black;
	height: 45px;
	valign: middle;
}
.sudoku td {
	border: thin solid black;
	width: 45px;
	text-align: center;
}
.sudoku .haut td {
	border-top: medium solid black;
}
.sudoku .bas td {
	border-bottom: medium solid black;
}
.sudoku .gauche {
	border-left: medium solid black;
}
.sudoku .droite {
	border-right: medium solid black;
}
.sudoku .choix {
	position: absolute;
	box-shadow: 1px 1px 8px 2px gray;
	padding: 0px;
	border: medium solid darkgreen;
	font-size: medium;
	font-weight: bold;
	background-color: lightblue;
}
.sudoku .choix table {
	border: none;
}
.sudoku .choix tr {
	border: none;
	height: 25px;
	valign: middle;
}
.sudoku .choix td {
	border: none;
	width: 25px;
	text-align: center;
}
.sudoku .choix a:link, .sudoku .choix a:visited {
	color: darkgreen;
	text-decoration: none;
}
.sudoku .choix a:hover, .sudoku .choix a:active {
	color: red;
	text-decoration: none;
}
.choix_selection {
	background-color: orange;
}