How to make a custom block slider?

Question

css

Hello colleagues!
Tell me, please, how to make such a block:

In the tablet and mobile versions, it turns (or not) into a slider

. I'm more interested in extreme photos. How to stretch them like that?

Answer 1

use bootstrap 4 grid, it's already on flexbox. Here is an example.
https://codepen.io/Nickolyashka/pen/LvmBaL

Answer 2

100% solution without crutches.
Here , on the desktop, the block sizes are the same, on the tablet, set the same block widths.