| Extra small<576px | Small≥576px | Medium≥768px | Large≥992px | Extra large≥1200px | Extra extra large≥1400px | |
|---|---|---|---|---|---|---|
| Grid behavior | Horizontal at all times | Collapsed to start, horizontal above breakpoints | ||||
| Max container width | None (auto) | 540px | 720px | 960px | 1140px | 1320px | 
| Class prefix | .col- | .col-sm- | .col-md- | .col-lg- | .col-xl- | .col-xxl- | 
| # of columns | 12 | |||||
| Gutter width | 1.5rem (.75rem on left and right) | |||||
| Nestable | Yes | |||||
| Offsets | Yes | |||||
| Column ordering | Yes | |||||
You may use predefined grid classes. Using .col-md-* you can set the grid system.
You can use the align-items-* class
                        to set the vertical alignment.
                    
You can use the justify-content-* class
                        to set the horizontal alignment.
                    
To nest your content with the default grid, add a new.row and set
                       of .col-sm-* columns within an existing .col-sm-*  column.
                    
Using .order class, you can set the order position.
You can offset the grid column using .offset-* grid class.