The phrase "cart button" refers to a symbol or icon on a website that allows users to add products to their virtual shopping cart before making a purchase. Full definition
A view cart button will appear above the picture and you can either check out from that link or click the navigation button to the home page to continue shopping. (bookcovers.us)
In the meantime, if you want to say hello to English Yellow for your next project, please use the Add to Cart button below. (searosecottage.com)
Click the Add To Cart button above and start enjoying real cinnamon. (amazon.com)