Why is the padding (row + row) added?

Question

HTML

I place one line inside another, the inner line starts to crawl out of the outer line during compression and a strange indent appears.
Screenshots with an explanation:
joxi.ru/eAOLK06s4R9Wyr (this is the content of the page, we see the indentation on the right)
joxi.ru/1A55nQJsK5DaLA for some reason each line inside is pushed out and gives a general indentation on the site on the right, an empty bar appears and, accordingly, when you scroll, it drives right / left on a couple of millimeters on the phone. Is it nominal? How to fight??