Buttons, we've got all kind of buttons.

Buttons are really easy to implement. You can apply them to all kinds of html elements. they're mainly used on a and button elements.
You only have to add two classes for you button to look nice. All examples are showed in the spoiler.

class btn
class btn-default
class btn-primary
class btn-success
class btn-info
class btn-warning
class btn-danger
class btn-link

Note: All elements you want to style as a button will need the class btn.