margin doesn’t work

Hello, I’m trying to fix a problem with margin. In one section it doesn’t work. Can’t understand with what it is connected because I’ve finished this page already and in 1-2 days margins in this section broke. I can setup any value with Elementor but it doesn’t work, but I can set margins, for example, through Google Develepment Kit.

Can you help me to understand and fix this?
Or how to find code of section that I need to write styles that I need.

Thanks for the help!