How to teach to make a site adaptive on bootstrap and what is needed for this?

Question

css

I want to ask how to learn how to make a site adaptive on Bootstrap
. What do you need to learn for this and if you can throw some resources.
I will be grateful!

Answer 1

To Google: bootstrap in Russian
And read the documentation

Answer 2

bootstrap is responsive by default col-md-10 - 10 columns for md resolution, generally a strange question.
col-lg-11 columns for large. add subtract classes and get yourself an adaptive.