Sometimes store owners want to increase/decrease the size of product for Desktop screens. The default height is 200px, the width is adjusted automatically while keeping the specified height. If one is changed, the other shall change too. Suppose you want to decrease the height to 150px.
Apply the following code under Wishlist page section of Extra CSS in Merchant Console.
@media (min-width: 767px)
height: 300px !important;