The Bootstrap documentation has really nice callouts to draw attention to important information, but for some reason these callouts are not included in the actual Bootstrap distribution. The generic callout CSS and the styles for the info, warning, and danger callouts is a direct pull from the live CSS for the docs. Styles for default, success, and primary, are created by me, as the Bootstrap docs do not employ these.
Forked from Chris Pratt's Pen Twitter Bootstrap 3.2.0 Callouts.
A Pen by Dave Hunsberger on CodePen.