.banner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  .link,
  .img {
    width: 100%;
  }
  .desktop {
    display: block;
  }
  .mobile {
    display: none;
  }
}
@media screen and (max-width: 783px) {
  .banner {
    .desktop {
      display: none;
    }
    .mobile {
      display: block;
    }
  }
}