Where can I add in my own CSS to Sticky Buy Now Button? Norton Chris June 11, 2018 23:06 Follow To add your own custom CSS: Open the app Click Advanced Settings Enter your CSS in the Custom CSS field Save your changes Related articles How do I change the color of the review stars on the Sticky Buy Now Button bar? How do I customize the style, background color, etc of the discount table and cart page widgets? I've upgraded or changed themes. How do I reinstall Sticky Buy Now Button? How do I install Stick Buy Now Button? Show pre-order buttons when inventory is at or below 0 Comments 0 comments Article is closed for comments.