1. Alert box
This is an alert. You may need to pay attention to this message.
Example code:
<div class="alert-box">This is an alert. You may need to pay attention to this message.</div>
2. Success
Congratulations. You have done something awesome.
Example code:
<div class="success-box">Congratulations. You have done something awesome.</div>
3. Errors
Wow. You are really doing it wrong.
Example code:
<div class="error-box">Wow. You are really doing it wrong.</div>