Meaning of numbers in “col-md-4″,” col-xs-1″, “col-lg-2” in Bootstrap

I am confused with the grid system in the new Bootstrap, particularly these classes: col-lg-* col-md-* col-xs-* (where * represents some number). Can anyone please explain the following: How that number is aligning the grids? How to use these numbers? What they actually represent? 5 s 5 Applies to Bootstrap 3 only. Ignoring the letters … Read more