Wrap any text and an optional dismiss button in .alert for a basic warning alert message.

For longer messages, increase the padding on the top and bottom of the alert wrapper by adding .alert-block.

Add optional classes to change an alert's connotation.

Well done! You successfully read this important alert message.
Heads up! This alert needs your attention, but it's not super important.
Warning! Best check yo self, you're not looking too good.
Oh snap! Change a few things up and try submitting again.
	<div class="alert alert-success">
	  <button type="button" class="close" data-dismiss="alert">&times;</button>
	  <strong>Yes!</strong> Something went right.

Learn more about bootstrap alerts here: