/* [1] The container */
.img-hover-zoom {
  height: 100%; /* [1.1] Set it as per your need */
  overflow: hidden; /* [1.2] Hide the overflowing of child elements */
}

/* [2] Transition property for smooth transformation of images */
.img-hover-zoom img {
  transition: transform 0.5s ease;
}

/* [3] Finally, transforming the image when container gets hovered */
.img-hover-zoom:hover img {
  transform: scale(1.2);
}