body {
  max-width: 56rem;
  padding: 1rem;
  margin: auto;
}
main {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.mockup {
  display: block;
  max-height: 38rem;
  max-width: 100%;
}
@media screen and (min-width: 56rem) {
  main {
    flex-direction: row;
    justify-content: center;
    gap: 3rem;
  }
}