Your main objective with an add-to-cart button is to grab the attention of potential customers. They've already shown interest in the product by viewing all the product information on the page. So, the next step is to convince them to click that valuable add-to-cart button.

Position it where users are expecting. Clever button positioning and design don't benefit you here. Adhere to standardized norms and place it where people can easily find it. On product pages, this means it is usually under or next to the product description.

A Sticky Add to Cart button is a persistent website or app element that remains visible to users as they scroll through product pages.

The best way to choose which colour fits your website is by choosing one that visually contrasts with your colour scheme but stays in keeping with your brand guidelines. For example, if your site has a lot of white, try a red button. If it's black, try a green button. And if it's blue, try an orange button.