What is the best grid to use at 320px?

Question

Layout

What is the best grid to use at 320px? There is no such permission in bootstrap. I'm using 1920 and 768px bootstrap 4, what grid should I use at 320px? How many columns and what sizes are you using under 320px ? Please help a newbie!

Answer 1

Decision. Set the layout to 320px and set the guides 15px left and right. in the field and work

Answer 2

320 is one column))) 768 is 2-3 columns, 992 is 3 columns, 1200 can fit 4.
This is if it's very abstract. It all depends on the layout.
Grid bootstrap 4 by 320 is col-12)))