Progress Nav is an animated progress bar that highlights sections of a page that are currently in view.
This page demonstrates an idea for how progress can be visualized inside of a standard page nav. Scroll the page and note how the marker animates to highlight all of the sections that are currently on screen.
The rest of the content below is taken from slides.com/developers. Take a look at that to see how the progress nav looks on a real page.
Created by Hakim El Hattab | hakim.se | @hakimel