@media (max-width: 767px) {
  .views-view-grid .all-news-col {
    width: 100% !important;
  }
  
  .view-news.view-display-id-page_2 .views-row,
  .view-news.view-display-id-page_6 .views-row, .view-news.view-display-id-block_1 .views-row {
    display: block;
  }
}