How to make container layout under each other when changing the screen resolution?

Question

HTML

There are four divs, so that when the screen resolution changes, those containers that do not fit automatically move down. How to implement it?

Answer 1

@ media

Answer 2

float: left?
flexbox?
media queries?
Вариантов примерно много. В чём у вас сложность возникает и какой вариант вы пробовали.

Answer 3

display: block