Are there any courses/videos on building a responsive site without bootstrap?

Question

css

Tell me a video or article on site layout without using bootstrap, but with the help of media and pure css

Answer 1

if you want, I’ll choose the time and spend a couple of hours, I’ll show you how to typeset everything yourself

Answer 2

Adaptive layout

Answer 3

https://html5css.ru/html/default.php

Answer 4

https://htmlacademy.ru/intensive/adaptive