html {
  background: black;
  color: white;
  font:
    500 150%/1.4 system-ui,
    sans-serif;
}

body {
  margin: 0;
}

.card {
  position: fixed;
  top: 50%;
  text-align: center;
  width: 70%;
  left: 50%;
}

img {
  max-width: 100%;
}

main > :not(.card):not(img) {
  display: none;
}