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Collapse

Toggle the visibility of content across your project with a few classes and our JavaScript plugins.

Example

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

Generally, we recommend using a button with the data-bs-target attribute. While not recommended from a semantic point of view, you can also use a link with the href attribute (and a role="button"). In both cases, the data-bs-toggle="collapse" is required.

Link with href

Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.

                            
<a class="btn btn-primary" data-bs-toggle="collapse" href="#collapseExample" role="button" aria-expanded="false" aria-controls="collapseExample">
  Link with href
</a>

<button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
  Button with data-bs-target
</button>

<div class="collapse" id="collapseExample">
  <div class="card card-body mt-16">
    <p class="hp-p1-body mb-0">
      Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
    </p>
  </div>
</div>

Multiple targets

A <button> or <a> can show and hide multiple elements by referencing them with a selector in its href or data-bs-target attribute. Multiple <button> or <a> can show and hide an element if they each reference it with their href or data-bs-target attribute

Toggle first element

Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.

                            
<a class="btn btn-primary" data-bs-toggle="collapse" href="#multiCollapseExample1" role="button" aria-expanded="false" aria-controls="multiCollapseExample1">Toggle first element</a>

<button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target="#multiCollapseExample2" aria-expanded="false" aria-controls="multiCollapseExample2">Toggle second element</button>

<button class="btn btn-primary" type="button" data-bs-toggle="collapse" data-bs-target=".multi-collapse" aria-expanded="false" aria-controls="multiCollapseExample1 multiCollapseExample2">Toggle both elements</button>

<div class="row">
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample1">
      <div class="card card-body mt-16">
        <p class="hp-p1-body mb-0">
          Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
        </p>
      </div>
    </div>
  </div>

  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample2">
      <div class="card card-body mt-16">
        <p class="hp-p1-body mb-0">
          Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
        </p>
      </div>
    </div>
  </div>
</div>

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Collapse

Example

Multiple targets