How to make a page like this?

Question

css

An example of the page event.ru/reports/11-vovlekayushhih-razvlecheniy-s-...
When scrolling, the left block rotates, after a certain moment the sidebar is pulled up. How to make up?

Answer 1

https://github.com/ymschaap/jquery-lockfixed

Answer 2

Didn't notice any activity in the sidebar there.
Answer to the question:
Their site is already laid out and working. In any such case, when you liked a ready-made layout, you just need to "take" (peep, steal, slam, whistle, steal, steal) a piece of HTML and CSS from them, and if possible - JS. This is the simplest.