I have a huge problem with positioning elements. My own layouts inside a page after positioning is usually not responsive

Question

Which case should I use positioning:
i) positioning main elements in a body.
OR
ii) positioning only child elements contained in main elements inside a body.

Answer 1

https://medium.com/hotg/css-position-a-complete-tutorial-c6bbe01f883f

Answer 2

where is the code?