Ein paar einfache Beispiele für HTML-Callouts:
<div style="padding: 15px; border: 1px solid transparent; border-color: transparent; margin-bottom: 20px; border-radius: 4px; color: #3c763d; background-color: #dff0d8; border-color: #d6e9c6;"> I am a success message </div>
<div style="padding: 15px; border: 1px solid transparent; border-color: transparent; margin-bottom: 20px; border-radius: 4px; color: #a94442; background-color: #f2dede; border-color: #ebccd1;"> I am an error message </div>
<div style="padding: 15px; border: 1px solid transparent; border-color: transparent; margin-bottom: 20px; border-radius: 4px; color: #31708f; background-color: #d9edf7; border-color: #bce8f1;"> I am a info message </div>
<div style="padding: 15px; border: 1px solid transparent; border-color: transparent; margin-bottom: 20px; border-radius: 4px; color: #8a6d3b;; background-color: #fcf8e3; border-color: #faebcc;"> I am a warning message </div>
I am a success message
I am an error message
I am a info message
I am a warning message