body h1,
body h2 {
  color: #fff;
  text-align: center;
}
body h1 {
  font-size: 48px;
}
body h2 {
  font-size: 20px;
}
.sudoku {
  margin: 70px auto;
  width: 479px;
 /* background: transparent;
  border: 2px solid #000;*/
/*  box-shadow: 15px 15px 20px #111;*/
}
.sudoku .sudoku-row {
  clear: both;
}
.sudoku .sudoku-row .sudoku-square {
  float: left;
  border: 1px solid #000;
}
.sudoku .sudoku-row .sudoku-square .cell:nth-child(3n + 1) {
  clear: both;
}
.sudoku .sudoku-row .sudoku-square .cell {
  float: left;
  position: relative;
  height: 50px;
  width: 50px;
  background: #fff;
  border: 1px solid #000;
  box-sizing: content-box;
}
.sudoku .sudoku-row .sudoku-square .cell.filled {
  background: #b5b5b5;
  vertical-align: middle;
}
.sudoku .sudoku-row .sudoku-square .cell.solved {
  background: #b5c5d8;
  vertical-align: middle;
}
.sudoku .sudoku-row .sudoku-square .cell .label {
  position: absolute;
  color: #aaa;
  top: 1px;
  left: 1px;
}
.sudoku .sudoku-row .sudoku-square .cell a {
  margin: 0;
  padding: 0;
}
.sudoku .sudoku-row .sudoku-square .cell a.cell-value {
  display: block;
  font-size: 30px;
  color: #000;
  width: 50px;
  height: 50px;
  text-align: center;
  text-decoration:none;
}

.sudoku .sudoku-row .sudoku-square .cell.filled:not(.solved) > a.cell-value {
  color: #444;
}
.sudoku .sudoku-row .sudoku-square .cell a.cell-value:hover {
  text-decoration: none;
}
.sudoku .sudoku-row .sudoku-square .cell:not(.filled) a.cell-value:hover {
  background: #ff7261;
}
.sudoku .sudoku-row .sudoku-square .cell a.cell-value.selected {
  background: #27ca9b;
}
.select-row {
  margin: 70px auto;
  width: 480px;
  border: 2px solid #e8afe7;
  box-shadow: 15px 15px 20px #111;
   

}
.select-row .cell {
  float: left;
  position: relative;
  height: 50px;
  width: 50px;
  background: #dfa;
  border: 1px outset #000;
  box-sizing: content-box;
}
.select-row .cell a {
  margin: 0;
  padding: 0;
  text-decoration:none;
}
.select-row .cell a.cell-value {
  display: block;
  font-size: 30px;
  color: #000;
  width: 50px;
  height: 50px;
  text-align: center;
}
.select-row .cell a.cell-value:hover {
  text-decoration: none;
  background: #e8afe7;
}
.select-row .cell a.cell-value.selected {
  background: #27ca9b;
}