.instagram-gallery {
    max-width: 80%;
    margin: auto;
  }
  .instagram-gallery__list {
    display: flex;
    flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    align-items: flex-start;
  }
  .instagram-gallery__item {
    min-width: 33.333%;
    width: 33.333%;
    padding: 20px;
  }

  .instagram-gallery__item img {
      width: 100%
  }

@media screen and (max-width: 850px) {
    .instagram-gallery__item {
      min-width: 48.999%;
      width: 48.999%;
      padding: 20px;
    }
}