Callouts help you putting en emphasis on a piece of information or notify the user of something. It can take two aspects :
<div class="lui callout"> Default - This is just a regular callout. </div>
<div class="lui callout filled color"> Filled - This is just a filled style callout </div>
The content of your callout can be as complex as you desire
Something went terribly wrong
<div class="lui callouts"> <div class="lui filled red callout"> <h4 class="header">Error!</h4> <p> Something went terribly wrong </p> <div class="footer actions"> <button class="lui button flat">Dismiss</button> </div> </div> </div>
Callouts can be groupped into a parent with the classes lui callouts
<div class="lui callouts"> <span class="lui filled red callout">Error<button class="lui button flat">Dismiss</button></span> <span class="lui filled green callout">Success<button class="lui button flat">Dismiss</button></span> <span class="lui filled orange callout">Achtung!<button class="lui button flat">Dismiss</button></span> <span class="lui filled callout">Fair enough...<button class="lui button flat">Dismiss</button></span> </div>