/* Default breakpoint is 600 (small), increase to 781 (medium) */
@media (max-width: 781px) {
  .is-style-column-match-height.wp-block-post-template-is-layout-grid.wp-block-post-template-is-layout-grid.wp-block-post-template-is-layout-grid.wp-block-post-template-is-layout-grid {
      grid-template-columns: 1fr;
  }
}