:root {
  color-scheme: light dark;
}
body {
  color: light-dark(#242424, #fff);
  background-color: light-dark(#fff, #242424);
}

.image-container {
  display: flex;
  align-items: center;
  height: 100dvh;
  width: 100vw;
  justify-content: center;
  padding: 0.5rem;
}
.image-container img,
video {
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
}