.sr-only class.
em units
em units
.status class. Comes with two badge sizes .status-sm and the default .status. Comes in 3 colors, .status-danger, .status-warning, and .status-success
.badge-pill modifier class to make badges more rounded (with a larger border-radius and additional horizontal padding).
.badge-* class on a hyperlink element to convert it to actionable badges with hover and focus states
.badge-icon with a combination of other utility classes to create a link badge. This class will auto turncate overflow giving you a nice clean look without any hassle