Ecommerce | Select field is connected to two Add to Cart buttons

Hello,

I am working on my product page for my Ecommerce store and I want to replicate Nike’s “Add to Bag” button for the mobile version. They have 2 “Add to Bag” buttons, one that is sticky on the bottom of the page until it is scrolled into view, and the other that is static on the page. Both of their buttons have one Select Field when a customer has to select a size.



Can someone help me replicate this on webflow.