* {
    margin: 0;
    padding: 0;
  }  
  html {
    background: #010101;
  }  
  html,
  body {
    width: 100%;
    height: 100%;
    overflow: hidden;
  }  
  main {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  canvas {
    max-width: 100vw;
    max-height: 100vh;
  }