Bootstrap Accordion

July 16, 2024

Bootstrap Accordions are a handy component of the Bootstrap framework. Building vertically collapsing accordions is straightforward in Bootstrap. Under the hood, Bootstrap uses the Collapse JavaScript plugin to bring collapsing functionality to the accordions.

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Bootstrap Accordion

The Bootstrap accordion uses collapse internally to make it collapsible. To render an expanded accordion, add the .open class on the .accordion. The Bootstrap accordion component’s animation effect depends on the prefers-reduced-motion media query.

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We have used a minimal default setup of Bootstrap Accordion in this example. You can click the accordions in the demo to expand/collapse the accordion content.

Features

Bootstrap 5
BSB Framework
HTML5 & CSS3
W3C Valid
Commented Code
Responsive Layout
Easy to Use
Cross Browser Compatible

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CSS
JS

<!-- Accordion 1 - Bootstrap Brain Component -->
<section class="py-3 py-md-5">
  <div class="container">
    <div class="row">
      <div class="col-12">
        <div class="accordion" id="accordionExample">
          <div class="accordion-item">
            <h2 class="accordion-header">
              <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
                Accordion Item #1
              </button>
            </h2>
            <div id="collapseOne" class="accordion-collapse collapse show" data-bs-parent="#accordionExample">
              <div class="accordion-body">
                <strong>This is the first item's accordion body.</strong> It is shown by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
              </div>
            </div>
          </div>
          <div class="accordion-item">
            <h2 class="accordion-header">
              <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
                Accordion Item #2
              </button>
            </h2>
            <div id="collapseTwo" class="accordion-collapse collapse" data-bs-parent="#accordionExample">
              <div class="accordion-body">
                <strong>This is the second item's accordion body.</strong> It is hidden by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
              </div>
            </div>
          </div>
          <div class="accordion-item">
            <h2 class="accordion-header">
              <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
                Accordion Item #3
              </button>
            </h2>
            <div id="collapseThree" class="accordion-collapse collapse" data-bs-parent="#accordionExample">
              <div class="accordion-body">
                <strong>This is the third item's accordion body.</strong> It is hidden by default, until the collapse plugin adds the appropriate classes that we use to style each element. These classes control the overall appearance, as well as the showing and hiding via CSS transitions. You can modify any of this with custom CSS or overriding our default variables. It's also worth noting that just about any HTML can go within the <code>.accordion-body</code>, though the transition does limit overflow.
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>

<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/css/bootstrap.min.css">

<script src="https://unpkg.com/[email protected]/dist/js/bootstrap.bundle.min.js"></script>

Bootstrap 5 Accordion Examples

Browse our best free Bootstrap Accordion tutorials and examples. These Bootstrap Accordion examples have a variety of layouts and designs. Extending these Bootstrap Accordion examples to fit into your Bootstrap projects is very easy.