Sticky Add To Cart Feature - Idea
A floating bar that becomes visible either when customers start to scroll/swipe down or when customers scroll/swipe beyond the original Add To Cart button.
The bar contains the Add to cart button, Product Details and a small thumbnail of the product image.
Example - https://sticky-add-to-cart-bar-demo-store.myshopify.com/collections/frontpage/products/awesome-sneakers?variant=28052864331