html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
  }

  video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 50px;
  }

  #instruction {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Noto Sans', sans-serif;
    font-size: 24px;
    color: white;
  }
/* CSS code by Purplebored */