.gridBox {
  color: #ff0000;
  border: 1px solid #ff0000;
  background: #ffd0b0;
}

.gridBoxChecked {
  color: #0000ff;
  border: 1px solid #ff0000;
  background: #ffe000;
  font-weight: bold;
}

.outline {
  border: 1px solid #ff0000;
}