Alerts
Default Alerts
Alerts are available for any length of
                                    text, as well as an optional dismiss button. For proper styling, use one
                                    of the four required contextual classes (e.g., .alert-success). For inline
                                    dismissal, use the alerts jQuery plugin.
Link color
Use the .alert-link utility class to
                                    quickly provide matching colored links within any alert.
Dismissing
                                    Add a dismiss button and the .alert-dismissible class, which adds extra padding
                                    to the right of the alert and positions the .close button.