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.
Use class .btn-rounded for button round border.
Add icon in button.
Add .btn-lg or .btn-sm for additional sizes.
Add .w-xs, .w-sm, .w-md and
.w-lg class for additional buttons width.
The .btn
classes are designed to be used with the <button>
element.
However, you can also use these classes on <a> or
<input> elements (though
some browsers may apply a slightly different rendering).
Add data-bs-toggle="button"
to toggle a button’s active
state. If you’re pre-toggling a button, you must manually add the .active class
and aria-pressed="true" to the
<button>.
Make buttons look inactive by adding the disabled boolean
attribute to any <button> element. Disabled buttons have
pointer-events: none applied to, preventing hover and active states from
triggering.
<a>s don’t support the disabled
attribute, so you must add the .disabled class and
aria-disabled="true" to make it visually appear disabled. also include a
tabindex="-1" attribute.
Create block level buttons—those that
span the full width of a parent—by adding .d-grid.
Create button-like checkboxes and radio buttons by using
.btn styles rather than .form-check-label on the
<label> elements.
Wrap a series of buttons with .btn in .btn-group.
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.