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

html, body {
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
}

#main-canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
}