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Screenshot scrolling animation

Hi, does anyone know how to create the effect on this website ? It is under the section " See the big picture with the best points from both sides" where the screenshot is scrolling in a tablet.


Here is my public share link: LINK
(how to access public share link)

could be just an animated gif.
or interaction of an image while scrolling in view.
It would be a div with overflow hidden, interaction loop etc.
Lots of ways.