I need to build a fixed header nav from scratch that has the following features -
Opacity can change once (for single scroll page) the first content pane scrolls up and out of view
Header height can change once the the first content page scrolls out of view.
This is a common feature found in many WordPress themes but don’t want to rely on themes.
Not sure where to start. The Skrollr.js lib can probably achieve this and i’m learning it now but this lib hasn’t been updated since 2014?
Anyone got any advice on this?, thanks