Bootstrap 4 JS Button Reference

Bootstrap 4 JS Button

Button CSS Classes

For a tutorial about Buttons, read our Bootstrap Buttons Tutorial.

The classes below can be used to style any <a>, <button>, or <input> element:

Class Description Example
.btn Adds basic styling to any button Try it
.btn-danger Indicates a dangerous or potentially negative action Try it
.btn-dark Dark grey button Try it
.btn-default Indicates a default/standard button Try it
.btn-info Contextual button for informational alert messages Try it
.btn-lg Makes a large button Try it
.btn-light Light grey button Try it
.btn-link Makes a button look like a link (will still have button behavior) Try it
.btn-outline-* Creates an outlined/bordered button. Use any of the contextual classes as * (btn-outline-primary, btn-outline-success, etc) Try it
.btn-primary Provides extra visual weight and identifies the primary action in a set of buttons Try it
.btn-sm Makes a small button Try it
.btn-success Indicates a successful or positive action Try it
.btn-secondary Indicates a "less" important action Try it
.btn-warning Indicates caution should be taken with this action Try it
.btn-block Makes a block-level button (spans the full width of the parent element) Try it
.active Makes the button appear pressed Try it
.disabled Makes the button disabled Try it

Via JavaScript

Enable manually with:


Button Options


Button Methods

The following table lists all available button methods.

Note: Methods can also be passed via data attributes; append the method name to data-, as in data-toggle or data-dispose.

Method Description Try it
.button("toggle") Makes the button look pressed Try it
.button("dispose") Destroys an element's button