Hello! In this video I create a 12 column grid from scratch. This is a visual design video, not a CSS grids video. (Read more below)
I use Affinity Designer but you can do exactly the same as I do here regardless of what software you use to create designs, wireframes or layouts.
The grid base is taken from here: http://gridcalculator.dk/#/1140/12/20/20.
This is my first time doing something like this, plus English is not my first language. My apologies for that 😊