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Contact section help

Here is my public share link: Webflow - Nicholas's Five-Star Project

I am trying to change the way my contact section is on my website that I am working on but cant seem to figure it out. If you see how when you reach the contact section on the bottom of my website and keep scrolling there is a background image. I want it to stop scrolling once it reaches the contact form and remove that background image. Any help is greatly appreciated.

Here is the link to see what I mean about the contact section scrolling :