#gallery-container {
  max-width:200rem;
  margin: 0px auto;
  padding: 0 2rem 2rem;
}
.gallery {
  display: flex;
  flex-wrap: wrap;
  /* Compensate for excess margin on outer gallery flex items */
  margin: -1rem -1rem;
}

.gallery-item {
  /* Minimum width of 24rem and grow to fit available space */
  flex: 1 0 18rem;
  /* Margin value should be half of grid-gap value as margins on flex items don't collapse */
  margin: 1rem;
  overflow: hidden;
}

.gallery-image {
  display: block;
  width: 90%;
  box-shadow: 0.3rem 0.4rem 0.4rem rgba(0, 0, 0, 0.4);
  object-fit: cover;
  transition: transform 400ms ease-out;
}

.gallery-image:hover {
  transform: scale(1.15);
}