Buttons
Buttons are one of the most integral elements of the page.
.btn-primary.btn-secondary.btn-primary-light.btn-secondary-light.btn-primary-dark.btn-secondary-dark.btn-default.btn-success.btn-info.btn-warning.btn-danger.btn-light.btn-dark
Add class .btn-o to get the outlined buttons.
Add classes .btn-t and .btn-tc
(from transparent/-colored)
to get transparent (default) buttons. The difference is only in the color of the text.
You can combine .btn-tc with .btn-tc-link.
Use .btn-lg, .btn-sm, .btn-xs for fast change button size.
.btn-block will make your button full-width unit.
Wrap a series of buttons into groups.
Wrap a series of buttons with .btn in .btn-group.
Combine sets of .btn-group into a .btn-toolbar for more complex components.
Make a set of buttons appear vertically stacked rather than horizontally
(.btn-group-vertical).
Instead of applying button sizing classes to every button in a group, just add
.btn-group-* to each .btn-group, including when nesting multiple groups.
Place a .btn-group within another .btn-group when you want
dropdown menus mixed with a series of buttons.