html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
}

img {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100lvh;
  object-fit: cover;
  object-position: center;
}