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Cart always visible on products page

Hi folks,

Im wondering if theres any way of making the cart always visble on the right hand side of the screen whilst users are on the products page? similar to this example

https://www.tesco.com/groceries/en-GB/shop/food-cupboard/chocolate-sweets-mints-and-chewing-gum/multipack-chocolate-bars


Here is my site Read-Only: LINK
(how to share your site Read-Only link)