.related-products {
  display: block;
}

.related-products__heading {
  margin: 0 0 25px;
}

@media screen and (max-width: 750px) {
  .related-products {
    .product-grid {
      .grid__item {
        width: 50%;
        margin-top: 10px;
      }
    }
  }
}