Theme settinsg > Sticky add to cart button
Consider this: A customer is shopping on your client’s page and scrolling through a product’s awesome description. The customer is getting excited to buy the product, but as they scroll further, they don’t see a buy button. They soon realize they have to scroll all the way back to the top to look for it, and in this moment, their excitement to buy the product is overshadowed by their need to search for the ‘add to cart’ button. Once this happens, your client might lose the customer’s interest and could potentially miss out on a sale.