Help! Code Responsiveness is Messed Up

I have a code block on my website that pulls in a screen from another website. My dilemma is that I need to make the height of the screen larger - when I change the height to 300% in my code, the screen runs beneath the text in the section below. To fix this, I put a spacer block between the code and text beneath. However, somehow the spacer is overlapping the code window on the mobile version. When I try to scroll down the window, only the top part of the screen is responsive. If I try to grab any other part of the window to scroll, it does not respond. Any ideas how to fix this for both the web and mobile versions??? I need to have this fixed by tomorrow morning - help is greatly appreciated!!

Hi,

Can you share link to page where you use Code Block? We can check problem easier