html, body {
    margin: 0; padding: 0;
    position: relative; height: 100%;
    font-family: serif;
    font-weight: bold;
    background: black;
  }

  video {
    position: absolute; width: 100%; height: 100%; object-fit: cover;
    filter: blur(5px) brightness(1.5) contrast(1.25);
  }

  slide {
    opacity: 0;
    transition: opacity 0.2s;

    position: absolute;
    left: 0; right: 0;
    bottom: 10vh;

    font-size: 7vh;
    text-shadow:
      -1pt -1pt 0.5vh #000,
      1pt -1pt 0.5vh #000,
      -1pt 1pt 0.5vh #000,
      1pt 1pt 0.5vh #000;
    color: white;
    text-align: center;
  }