css grids layout - mobile first approach

[senolv]

Why do we need to define the grid for mobile?

What is the advantage of doing so?

Check this example: common layouts with ccs grids on MDN

So, we could have the same results for mobile without defining a grid, just defining the grid at the first breakpoint would do the job.

I asked this question on stackoverflow and god a really good answer, but I would be really glad to know what is in your mind.

Thanks

[IOIIOOIO]

@senolv I'm just interested to see your StackOverflow question, please.