Orange Button

Black Button

Red Button

Yellow Button

Blue Button

Green Button

Pink Button

[cool_button href="#" color="pink"]Pink Button[/cool_button]

 

Button	class=””	Description
Default	btn	Standard gray button with gradient
Primary	btn btn-primary	Provides extra visual weight and identifies the primary action in a set of buttons
Info	btn btn-info	Used as an alternative to the default styles
Success	btn btn-success	Indicates a successful or positive action
Warning	btn btn-warning	Indicates caution should be taken with this action
Danger	btn btn-danger	Indicates a dangerous or potentially negative action
Inverse	btn btn-inverse	Alternate dark gray button, not tied to a semantic action or use

Link Button

<a class="btn" href="">Link</a>
<button class="btn" type="submit">Button</button>

More info about Buttons here