_sass/core/includes/two-column-content-band.scss

.two-column-content-band {
  .two-columns {
    width: 100%;
    -moz-column-count: 2;
    -moz-column-gap: 2rem;
    -webkit-column-count: 2;
    -webkit-column-gap: 2rem;
    column-count: 2;
    column-gap: 2rem;
  }
  .img-content {
    margin: 0;
  }
  @media screen and (max-width: $breakpoint-m) {
    .two-columns {
      width: 100%;
      -moz-column-count: 1;
      -moz-column-gap: 1rem;
      -webkit-column-count: 1;
      -webkit-column-gap: 1rem;
      column-count: 1;
      column-gap: 1rem;
    }
  }
}