Collapse

Toggle the visibility of content across your project with a few classes and Bootstrap’s collapse JavaScript plugin.

The collapse JavaScript plugin is used to show and hide content. Buttons or anchors are used as triggers that are mapped to specific elements you toggle. Collapsing an element will animate the height from it’s current value to 0. Given how CSS handles animations, you cannot use padding on a .collapse element. Instead, use the class as an independent wrapping element.

Usage

Click the buttons below to show and hide another element via class changes:

.collapse hides content
.collapsing is applied during transitions
.collapse.show shows content

You can use a link with the href attribute or a button with the data-target attribute, targeting the id of the .collapse element. In both cases, data-toggle="collapse" is required.

Link with href

Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.


<p>
	<a class="btn btn-primary" data-toggle="collapse" href="#collapseExample" role="button" aria-expanded="false" aria-controls="collapseExample">
		Link with href
	</a>
	<button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
		Button with data-target
	</button>
</p>
<div class="collapse" id="collapseExample">
	<div class="card card-body">
		Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident.
	</div>
</div>

With cards

Using the card component, you can extend the default collapse behavior to create an accordion.

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<div class="accordion shadow" id="accordionExample">
	<div class="card">
		<div class="card-header" id="headingOne">
			<h5 class="mb-0">
				<button class="btn btn-link" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
					Collapsible Group Item #1
				</button>
			</h5>
		</div>
		<div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
			<div class="card-body">
				Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
			</div>
		</div>
	</div>
	<div class="card">
		<div class="card-header" id="headingTwo">
			<h5 class="mb-0">
				<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
					Collapsible Group Item #2
				</button>
			</h5>
		</div>
		<div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionExample">
			<div class="card-body">
				Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
			</div>
		</div>
	</div>
	<div class="card">
		<div class="card-header" id="headingThree">
			<h5 class="mb-0">
				<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
					Collapsible Group Item #3
				</button>
			</h5>
		</div>
		<div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
			<div class="card-body">
				Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
			</div>
		</div>
	</div>
</div>

JavaScript behavior

Triggers

Enable an element as a collapsible element manually with:


$('.collapse').collapse()

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-parent="“.

Name	Type	Default	Description
parent	selector, jQuery object, DOM element	false	If parent is provided, then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion behavior - this is dependent on the card class). The attribute has to be set on the target collapsible area.
toggle	boolean	true	Toggles the collapsible element on invocation.

Methods

Method	Description
`$().collapse('toggle')`	Toggles a collapsible element to shown or hidden. Returns to the caller before the collapsible element has actually been shown or hidden (i.e. before the `shown.bs.collapse` or `hidden.bs.collapse` event occurs).
`$().collapse('show')`	Shows a collapsible element. Returns to the caller before the collapsible element has actually been shown (i.e. before the `shown.bs.collapse` event occurs).
`$().collapse('hide')`	Hides a collapsible element. Returns to the caller before the collapsible element has actually been hidden (i.e. before the `hidden.bs.collapse` event occurs).
`$().collapse('dispose')`	Destroys an element’s collapse.

Events

The collapse class exposes a few events for hooking into collapse functionality.

Event	Description
show.bs.collapse	This event fires immediately when the show instance method is called.
shown.bs.collapse	This event is fired when a collapse element has been made visible to the user (will wait for CSS transitions to complete).
hide.bs.collapse	This event is fired immediately when the hide method has been called.
hidden.bs.collapse	This event is fired when a collapse element has been hidden from the user (will wait for CSS transitions to complete).


$('#myCollapsible').on('hidden.bs.collapse', function () {
  // Do something…
});

Code Date & time

Collapse

Usage

With cards

Collapsible Group Item #1

Collapsible Group Item #2

Collapsible Group Item #3

JavaScript behavior

Triggers

Options

Methods

Events

Read more