Accordion

Build vertically collapsing accordions in combination with Bootstrap’s Collapse JavaScript plugin.

How it works

The accordion uses collapse internally to make it collapsible. To render an accordion that’s expanded, add @outputclass="show" to expand the relevant <section> .

Example

Click the accordions below to expand/collapse the accordion content.

This is the first item’s accordion body. 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 Bootstrap’s default variables.

This is the second item’s accordion body. 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 Bootstrap’s default variables.

This is the third item’s accordion body. 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 Bootstrap’s default variables.

<bodydiv outputclass="accordion">
  <section id="accordion1" outputclass="show">
    <title>Accordion Item #1</title>
    <p>
      <b>This is the first item’s accordion body.</b> 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 Bootstrap’s default
        variables.
    </p>
  </section>
  <section id="accordion2">
    <title>Accordion Item #2</title>
    <p>
      <b>This is the second item’s accordion body.</b> 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 Bootstrap’s default
        variables.
    </p>
  </section>
  <section id="accordion3">
    <title>Accordion Item #3</title>
    <p>
      <b>This is the third item’s accordion body.</b> 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 Bootstrap’s default
        variables.
    </p>
  </section>
</bodydiv>

Flush

Add @outputclass="accordion-flush" to remove the default background-color, some borders, and some rounded corners to render accordions edge-to-edge with their parent container.

Placeholder content for this accordion, which is intended to demonstrate @outputclass="accordion-flush". This is the first item's accordion body.

Placeholder content for this accordion, which is intended to demonstrate @outputclass="accordion-flush". This is the second item's accordion body. Let's imagine this being filled with some actual content.

Placeholder content for this accordion, which is intended to demonstrate @outputclass="accordion-flush". This is the third item's accordion body. Nothing more exciting happening here in terms of content, but just filling up the space to make it look, at least at first glance, a bit more representative of how this would look in a real-world application.

<bodydiv outputclass="accordion-flush">
  ...etc
<bodydiv>

Always open

Set <bodydiv outputclass="accordion-open"> to make accordion items stay open when another item is opened.

This is the first item’s accordion body. 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 Bootstrap’s default variables.

This is the second item’s accordion body. 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 Bootstrap’s default variables.

This is the third item’s accordion body. 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 Bootstrap’s default variables.

<bodydiv outputclass="accordion-open">
  ...etc
<bodydiv>