Add modifier classes to change the appearance of a badge.
| Classes | Badges | 
|---|---|
| No modifiers | 42 | 
| .badge-primary | 1 | 
| .badge-success | 22 | 
| .badge-info | 30 | 
| .badge-warning | 412 | 
| .badge-danger | 999 | 
Easily highlight new or unread items with the .badge class