Parallax Content Scroll and Images

Hey guys! I have started on webflow for the past month or so and one thing has pretty much been very hard.

This is the parallax scrolling effect in webflow. I know it is possible as lots of people do it but I cannot see to understand how its done. This is a good example of the header parallax scroll effect that I want to do. I know it has been created in Webflow so I see its possible.

Hope somebody can help me out with this and those kind of effects in general.