How to hide a scroll bar, but leave the possibility of scrolling?

Design help Custom code
1

How to hide a scroll bar, but leave the possibility of scrolling? As on this site for example: http://dacdavynguyen.com/

2

That website is using http://scrollmagic.io

3

I added this code to the site. And published it. But the scrollbar remained(

4

You have to follow the examples Examples - ScrollMagic

and then read the documentation for advanced configuration:

ScrollMagic Documentation
ScrollMagic Class: Controller
ScrollMagic Class: Scene
Getting Started : How to use ScrollMagic · janpaepke/ScrollMagic Wiki · GitHub