This will provide 2 headers without the double sliding animation (which is potentially distracting). 1. Stack two headers on top of each other, both of them st

This will provide 2 headers without the double sliding animation (which is potentially distracting). 1. Stack two headers on top of each other, both of them sticky. (Only topmost header is visible.) 2. At a certain scroll position, fade/scroll/hide the top header.