input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

table.sudoku, table.sudokuProposition, table.sudokuCandidate {
  border-spacing: 0;
  border-collapse: collapse;
  border: 5px solid;
  margin-left: auto;
  margin-right: auto;
}

table.sudoku tr td {
  width: 33px;
  height: 33px;
  margin: 0;
  border: 1px solid;
  padding: 0;
  text-align: center;
}

table.sudoku tr th {
  width: auto;
  height: 33px;
  margin: 0;
  border: 1px solid;
  padding: 3px;
  text-align: center;
}

table.sudoku tr td input {
  margin: 0;
  border: 0;
  border-radius: 0;
  padding: 0;
  width: 33px;
  height: 33px;
  text-align: right;
  -moz-appearance: textfield;
}

table.sudokuCandidate tr td {
  margin: 0;
  border: 0;
  border-radius: 0;
  padding: 0;
  width: 12px;
  height: 12px;
  text-align: center;
  font-size: 7px;
}

.sudokuRight1 {
  border-right: 1px solid !important;
}

.sudokuBottom1 {
  border-bottom: 1px solid !important;
}

.sudokuSelect {
  background-color: ghostwhite;
}

.sudokuProposition {
  background-color: palegreen;
}

.sudokuRight3 {
  border-right: 3px solid !important;
}

.sudokuBottom3 {
  border-bottom: 3px solid !important;
}

table.sudokuProposition tr td {
  width: 33px;
  height: 33px;
  margin: 0;
  border-radius: 0;
  text-align: center;
  border: 1px solid;
}

form.sudoku {
  text-align: center;
}