Why in a single page application, when you navigate to another page, the content of the site shifts to the side?

Question

css

When moving from the main page to the schedule, the content of the entire site shifts to the right / left. It looks like the page is resizing and block centering works differently.
Link - http://vho_morty_1094.vh.parking.ru/#/

Answer 1

So there is no scrollbar on the schedule, and the content is centered relative to the viewport width. Here it jumps. Fill the schedule page - there will be no problems.

Answer 2

Maybe because of the scrollbar?