Responsiveness Issue!

Hello, I’m having issues with the responsiveness of my webpage, my second header is not functioning as it is supposed to when I export the code. This issue is not apparent on the live version of the site only after it is exported.

I attached a screen recording link to the video, of what is the problem it helps better visualize it

Any feedback is welcome thank you!

Here is my site Read-Only: [LINK][1]