body,
html {
  margin: 0;
  background-color: rgba(205, 205, 205, 0);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  box-shadow: 5px 5px 15px 2px rgba(0, 0, 0, 0.3)
}