.gallery-from-folder {
  -webkit-column-count: 3; /* Chrome, Safari, Opera */
    -moz-column-count: 3; /* Firefox */
    column-count: 3;
  }
  .gallery-from-folder img{ width: 100%; padding: 7px 0;}
@media (max-width: 500px) {
    .gallery-from-folder {
  -webkit-column-count: 1; /* Chrome, Safari, Opera */
    -moz-column-count: 1; /* Firefox */
    column-count: 1;
  }
}