Elements being cut out of viewport

I’m new here and trying out Monday.com’s native app development feature. Also new to react. To test some things out, I’m trying to simply make an api call to Monday board data and display it in a series of divs. However, for some reason, the Monday window seems to arbitrarily cut out a large number of the top divs. The screen is vertically scrollable, but the very top of the screen has already cut out many of the above divs. Any idea why that happens and how to have more control of the screen?