.image_column-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 15px;
}
.image_column-grid {
  display: flex;
  flex-wrap: wrap;
}
.image_column-grid .image-column {
  flex: 0 0 100%;
}
.image_column-grid .image-column img {
  display: block;
  width: 100%;
}
@media (min-width: 769px) {
  .image_column-grid .image-column {
    flex: 1;
  }
}