body {
  font-family: sans-serif;
  text-align: center;
  background: #f0f0f0;
}

#board {
  display: grid;
  grid-template-columns: repeat(8, 60px);
  grid-template-rows: repeat(8, 60px);
  width: 480px;
  margin: 20px auto;
  border: 2px solid #333;
}

.cell {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.black {
  background-color: #444;
}

.white {
  background-color: #eee;
}

.piece {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
}

.red {
  background-color: red;
}

.black-piece {
  background-color: black;
}

#turnDisplay {
  font-size: 1.2em;
  margin-bottom: 10px;
}

.piece.king {
  border: 3px solid gold;
}
.piece.selected {
  outline: 3px solid yellow;
}