body {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  margin: 0;
  width: 100vw;
  min-width: 512px;
  height: 100vh;
  min-height: 512px;
  background-color: #14171F;
}

canvas {
  border: 8px outset #53D7F1;
  cursor: cell;
}