.image-zoom {
  /* ensure the image can’t overflow its container */
  overflow: hidden;
  /* optional, to force consistent sizing */
  display: inline-block;
}

.image-zoom img {
  /* enable smooth transitions */
  transition: transform 0.3s ease;
  /* set the point from which to scale (center by default) */
  transform-origin: center center;
}

.image-zoom:hover img {
  /* scale up the image on hover */
  transform: scale(1.1);
}