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My body doesn't fit in the mobile version of my website

Hey eveybody,
i am pretty new on here so bare with me, on the project i’m working on, the background page of my home page seems to be ‘broken’ like the pic doesn’t fit the pixels of the screen… I tried everything and it doesn’t seem i can fix this issues, also because it’s happening on the home page only.
i also checked the size of the picture itself and it should be fine, so i hope i’ll be luck on here. Here is my read-only link and a screenshot.