.footer-main > a {
  width: min(64%, 820px);
  max-width: 100%;
  overflow: hidden;
}

.footer-main > a img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 700px) {
  .footer-main > a {
    width: min(76vw, 520px);
  }
}