.hover-image {
  position: relative;
  display: inline-block;
}

.hover-image img {
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 0.3s ease;
}

.base-img {
  opacity: 1;
  z-index: 1;
}

.hover-img {
  opacity: 0;
  z-index: 2;
}

.hover-image:hover .base-img {
  opacity: 0;
}

.hover-image:hover .hover-img {
  opacity: 1;
}