See how aspects of the Bootstrap grid system work across multiple devices with a handy table.
| 
                                                    Extra small <576px  | 
                                                
                                                    Small ≥576px  | 
                                                
                                                    Medium ≥768px  | 
                                                
                                                    Large ≥992px  | 
                                                
                                                    Extra large ≥1200px  | 
                                            |
|---|---|---|---|---|---|
| Max container width | None (auto) | 540px | 720px | 960px | 1140px | 
| Class prefix | 
                                                    .col-
                                                 | 
                                                
                                                    .col-sm-
                                                 | 
                                                
                                                    .col-md-
                                                 | 
                                                
                                                    .col-lg-
                                                 | 
                                                
                                                    .col-xl-
                                                 | 
                                            
| # of columns | 12 | ||||
| Gutter width | 30px (15px on each side of a column) | ||||
| Nestable | Yes | ||||
| Column ordering | Yes | ||||