Text blocks are changing size repeatedly

The text blocks on my site keep making themselves larger. In the attached photo, the khaki color is one section, the black is a different section. I sized the text box down, made the section smaller, and saved it five minutes ago. It's now showing that giant empty space again. It's an even bigger gap in the second screenshot. It's doing this on multiple pages. I keep fixing this issue over and over – I feel like I must be missing something simple.

I'm using the provided blocks and not changing anything with the code in any way. Can anyone tell me what I'm missing?

Hi,

Can you share link to page where you have problem?