Bootstrap includes six predefined button styles, each serving its own semantic purpose.
Replace the default modifier classes with the
.btn-outline-* ones to remove all background images and colors on any button.
.btn-soft* for soft buttons.
.btn-rounded for button round border.
Buttons with icon
Add icon in button.
.btn-sm for additional sizes.
.w-lg class for additional buttons width.
classes are designed to be used with the
However, you can also use these classes on
<input> elements (though
some browsers may apply a slightly different rendering).
to toggle a button’s
state. If you’re pre-toggling a button, you must manually add the
aria-pressed="true" to the
Create block level buttons—those that
span the full width of a parent—by adding
Checkbox & Radio Buttons
Create button-like checkboxes and radio buttons by using
.btn styles rather than
.form-check-label on the
Combine sets of button groups into button toolbars for more complex components. Use utility classes as needed to space out groups, buttons, and more.
Instead of applying button sizing
classes to every button in a group, just add
.btn-group-* to each
.btn-group, including each one
when nesting multiple groups.
Make a set of buttons appear vertically stacked rather than horizontally. Split button dropdowns are not supported here.
Bootstrap has a base
.btn class that sets up basic styles such as padding and content alignment. By default,
.btn controls have a transparent border and background color, and lack any explicit focus and hover styles.
Custom sizing with CSS variables
You can even roll your own custom sizing with CSS variables:
Click directly on the link below to see the focus ring in action, or into the example below and then press Tab.
Sass utilities API
In addition to
.focus-ring, we have several
.focus-ring-* utilities to modify the helper class defaults. Modify the color with any of our theme colors. Note that the light and dark variants may not be visible on all background colors given current color mode support.