.product-miniature picture.secondary {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.product-miniature picture.secondary img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-miniature .card:hover picture.secondary {
  opacity: 1;
}