Question

how to create a add to cart button in your e-commerce website in HTML

Answer 1

To add a button to your site - at the page displaying your product you must add html forms that will add the number of selectedproducts to the cart list using php script, for example. Also, there is a more
complex version - when user clicks on the button (html tag <button>), javascript is executed , which sends ajax request to the server to add the
product to the cart.