Labels shifting down slightly when text being input

Hi, I’ve reached the point where I’ve implemented code to have the input change the Cesius text. I notice when I first type in a number, it shifts everything down slightly. I had to add a height constraint in order for that to not happen. My project file is here: https://file.io/yyGMr6 Is there anything wrong in the way I set things up that could cause that? Thanks.