Hello, I want to create a sticky cart button, on mobile and desktop versions, in a blog article, please tell me how to do it: https://onlypetstm.com/blogs/news/%D1%89
Hello @igoorwq 
You can find an app on Shopify App Store for adding a sticky add to cart button. I will not name any of the options, but you can search for “sticky add to cart” and you will find some good apps.
Hope that helps!
I searched for them, but they were only for products, and can you recommend something for a blog article?