@media screen and (min-width: 750px) {
  .main-page__content {
    width: 75rem;
    margin: 4rem auto 12rem;
  }
}

.page-placeholder-wrapper {
  display: flex;
  justify-content: center;
}

.page-placeholder {
  width: 52.5rem;
  height: 52.5rem;
}