Design Credits: https://www.sketchappsources.com/free-source/2513-simple-book-app-design-sketch-freebie-resource.html

Swipe up and down to choose between cards Credits: Card designs used from: https://www.sketchappsources.com/free-source/2453-credit-card-designs-sketch-freebie-resource.html

Change of the header according to scroll position of content.