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-block	Makes a block-level button (spans the full width of the parent element)	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-toolbar	Combine sets of button groups into button toolbars for more complex components	Try it
.btn-warning	Indicates caution should be taken with this action	Try it
.active	Makes the button appear pressed	Try it
.disabled	Makes the button disabled	Try it

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Via JavaScript

Enable manually with:

$('.btn').button();

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Button Options

None

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

Credit: www.w3schools.com