Where can I find a picture to visually display a twelve column grid?

Question

Design

Interested in something like this. It seems to be reasonable and should help those who are just starting to get acquainted with the framework.

Answer 1

I think you first need to familiarize yourself with Photoshop, how the grid is drawn in it correctly.
then you can get acquainted with the sizes under bootstrap by google "bootstrap for designer", there are quite a few articles with pictures on this topic

Answer 2

In the oversized free psd grids, this is usually done with translucent layers.
Another question is why draw a design in Photoshop in 2020?