#sudoku{
text-align: center;
}

#sudoku .reglig{
height: 31%;
}

#sudoku .region{
width: 32%;
float: left;
height: 100%;
margin: 0;
padding: 0;
}


#sudoku .ligne{
width: 100%;
height: 29%;
margin: 0;
padding: 0;
}

#sudoku .casedeb, #sudoku .case{
border-width: 1px;
border-style: solid;
float: left;
width: 28%;
height: 100%;
margin: 0;
padding: 0;
font-weight: bold;
font-size: inherit;
}

#sudoku .case input {
border: none;
background-color: transparent;
width: 98%;
height: 98%;
text-align: center;
margin: 0;
padding: 0;
font-weight: normal;
font-size: inherit;
}