Default alert
Holy guacamole! Best check yourself, you're not looking too good.
<div class="alert alert-warning fade in">
<button aria-hidden="true" data-dismiss="alert" class="close" type="button">×</button>
<strong>Holy guacamole!</strong> Best check yo self, you're not looking too good.
</div>
Error or danger
Oh snap! You got an error!
<div class="alert alert-danger fade in">
<button aria-hidden="true" data-dismiss="alert" class="close" type="button">×</button>
<h4>Oh snap! You got an error!</h4>
</div>
Success
Well done! You successfully read this important alert message.
<div class="alert alert-success fade in">
<button aria-hidden="true" data-dismiss="alert" class="close" type="button">×</button>
<strong>Well done!</strong>You successfully read this important alert message.
</div>
Information
Heads up! This alert needs your attention, but it's not super important.
<div class="alert alert-info fade in">
<button aria-hidden="true" data-dismiss="alert" class="close" type="button">×</button>
<strong>Heads up!</strong> This alert needs your attention, but it's not super important.
</div>