How to do the effect with the image about scroll the page down, the bottom section like comes over the top image?

In the reference below you will see the needed effect.
Good luck and have a nice day.
grandazur.fr/en
March 23rd 20 at 19:18
1 answer
March 23rd 20 at 19:20
Thank you!
But in the code of the website links on the parallax is not present, why? - Bell.Okuneva commented on March 23rd 20 at 19:23
@Bell.Okuneva, well, maybe they ccompiler all scripts into one file or write a script parallax - Don.Jones commented on March 23rd 20 at 19:26

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