Lemonwood Clock Product Landing Page 2.0

I overhauled the design of my page, and I like it a lot better. I’m still having a few problems, including not being able to see why my background color won’t extend to the second row of my nav-bar in my media query.
I need to fix a few responsiveness issues, especially with the form. Everything also looks and behaves a little differently in Codpen’s editor and debugging views, which makes it harder for me to know if what I’m doing actually works.

Thanks in advance for any feedback!

I would suggest moving your picture on top on smaller screens (flexbox)

Look up some examples of simple navigation bars.