body,
html {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-color: #000;
  display: flex;
  justify-content: center;
  align-items: center;
}

img {
  max-width: 97vw;
  max-height: 97vh;
  object-fit: contain;
}