#ScrollGallery {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

#ScrollGallery img {
  flex: 0 0 auto;
  width: 80%; /* adjust size */
  margin-right: 16px; /* space between pictures */
  scroll-snap-align: start;
  border-radius: 12px; /* optional */
}