.fade-img {
  opacity: 0;
}

.fade-img.is-loaded {
  animation: fade-img-in 0.7s ease both;
}

@keyframes fade-img-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .fade-img.is-loaded {
    animation: none;
    opacity: 1;
  }
}