body {
  margin: 30px auto;
  text-align: center;
  background-color: #161414;
  color: #999;
}

#board canvas {
  border: 1px solid #222;
  background-color: #8cd;
  -webkit-box-shadow: 0 0 24px 0 rgba(0, 0, 0, 1);
  -moz-box-shadow: 0 0 24px 0 rgba(0, 0, 0, 1);
  box-shadow: 0 0 24px 0 rgba(0, 0, 0, 1);
  border-radius: 10px;
}