* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #f5f5f5;
  color: #1a1a1a;
  font-family: sans-serif;
  overflow: hidden;
}

#canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}