Accordion

An accordion is a list of headers that hide or reveal additional content when selected.

Borderless Accordion

Component Preview

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

This is a list item
Another list item

No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law.

The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation.

Component Code


<div class="usa-accordion">
  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="true" aria-controls="a1">
      First Amendment
    </button>
  </h4>
  <div id="a1" class="usa-accordion__content usa-prose">
    <p>
      Congress shall make no law respecting an establishment of religion, or
      prohibiting the free exercise thereof; or abridging the freedom of speech,
      or of the press; or the right of the people peaceably to assemble, and to
      petition the Government for a redress of grievances.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="a2">
      Second Amendment
    </button>
  </h4>
  <div id="a2" class="usa-accordion__content usa-prose">
    <p>
      A well regulated Militia, being necessary to the security of a free State,
      the right of the people to keep and bear Arms, shall not be infringed.
    </p>
    <ul>
      <li>This is a list item</li>
      <li>Another list item</li>
    </ul>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="a3">
      Third Amendment
    </button>
  </h4>
  <div id="a3" class="usa-accordion__content usa-prose">
    <p>
      No Soldier shall, in time of peace be quartered in any house, without the
      consent of the Owner, nor in time of war, but in a manner to be prescribed by law.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="a4">
      Fourth Amendment
    </button>
  </h4>
  <div id="a4" class="usa-accordion__content usa-prose">
    <p>
      The right of the people to be secure in their persons, houses, papers, and
      effects, against unreasonable searches and seizures, shall not be violated,
      and no Warrants shall issue, but upon probable cause, supported by Oath or
      affirmation, and particularly describing the place to be searched, and the
      persons or things to be seized.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="a5">
      Fifth Amendment
    </button>
  </h4>
  <div id="a5" class="usa-accordion__content usa-prose">
    <p>
      No person shall be held to answer for a capital, or otherwise infamous crime,
      unless on a presentment or indictment of a Grand Jury, except in cases arising
      in the land or naval forces, or in the Militia, when in actual service in time
      of War or public danger; nor shall any person be subject for the same offence
      to be twice put in jeopardy of life or limb; nor shall be compelled in any
      criminal case to be a witness against himself, nor be deprived of life,
      liberty, or property, without due process of law; nor shall private property
      be taken for public use, without just compensation.
    </p>
  </div>
</div>

Bordered Accordion

Component Preview

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

This is a list item
Another list item

No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law.

Component Code


<div class="usa-accordion usa-accordion--bordered">
  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="true" aria-controls="b-a1">
      First Amendment
    </button>
  </h4>
  <div id="b-a1" class="usa-accordion__content usa-prose">
    <p>
      Congress shall make no law respecting an establishment of religion, or
      prohibiting the free exercise thereof; or abridging the freedom of speech,
      or of the press; or the right of the people peaceably to assemble, and to
      petition the Government for a redress of grievances.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="b-a2">
      Second Amendment
    </button>
  </h4>
  <div id="b-a2" class="usa-accordion__content usa-prose">
    <p>
      A well regulated Militia, being necessary to the security of a free State,
      the right of the people to keep and bear Arms, shall not be infringed.
    </p>
    <ul>
      <li>This is a list item</li>
      <li>Another list item</li>
    </ul>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="b-a3">
      Third Amendment
    </button>
  </h4>
  <div id="b-a3" class="usa-accordion__content usa-prose">
    <p>
      No Soldier shall, in time of peace be quartered in any house, without the
      consent of the Owner, nor in time of war, but in a manner to be prescribed by law.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="b-a4">
      Fourth Amendment
    </button>
  </h4>
  <div id="b-a4" class="usa-accordion__content usa-prose">
    <p>
      The right of the people to be secure in their persons, houses, papers, and
      effects, against unreasonable searches and seizures, shall not be violated,
      and no Warrants shall issue, but upon probable cause, supported by Oath or
      affirmation, and particularly describing the place to be searched, and the
      persons or things to be seized.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="b-a5">
      Fifth Amendment
    </button>
  </h4>
  <div id="b-a5" class="usa-accordion__content usa-prose">
    <p>
      No person shall be held to answer for a capital, or otherwise infamous crime,
      unless on a presentment or indictment of a Grand Jury, except in cases arising
      in the land or naval forces, or in the Militia, when in actual service in time
      of War or public danger; nor shall any person be subject for the same offence
      to be twice put in jeopardy of life or limb; nor shall be compelled in any
      criminal case to be a witness against himself, nor be deprived of life,
      liberty, or property, without due process of law; nor shall private property
      be taken for public use, without just compensation.
    </p>
  </div>
</div>

Multiselectable Accordion

Component Preview

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

This is a list item
Another list item

No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law.

Component Code


<div class="usa-accordion usa-accordion--multiselectable" data-allow-multiple>
  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="true" aria-controls="m-a1">
      First Amendment
    </button>
  </h4>
  <div id="m-a1" class="usa-accordion__content usa-prose">
    <p>
      Congress shall make no law respecting an establishment of religion, or
      prohibiting the free exercise thereof; or abridging the freedom of speech,
      or of the press; or the right of the people peaceably to assemble, and to
      petition the Government for a redress of grievances.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="m-a2">
      Second Amendment
    </button>
  </h4>
  <div id="m-a2" class="usa-accordion__content usa-prose">
    <p>
      A well regulated Militia, being necessary to the security of a free State,
      the right of the people to keep and bear Arms, shall not be infringed.
    </p>
    <ul>
      <li>This is a list item</li>
      <li>Another list item</li>
    </ul>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="m-a3">
      Third Amendment
    </button>
  </h4>
  <div id="m-a3" class="usa-accordion__content usa-prose">
    <p>
      No Soldier shall, in time of peace be quartered in any house, without the
      consent of the Owner, nor in time of war, but in a manner to be prescribed by law.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="m-a4">
      Fourth Amendment
    </button>
  </h4>
  <div id="m-a4" class="usa-accordion__content usa-prose">
    <p>
      The right of the people to be secure in their persons, houses, papers, and
      effects, against unreasonable searches and seizures, shall not be violated,
      and no Warrants shall issue, but upon probable cause, supported by Oath or
      affirmation, and particularly describing the place to be searched, and the
      persons or things to be seized.
    </p>
  </div>

  <h4 class="usa-accordion__heading">
    <button type="button" class="usa-accordion__button" aria-expanded="false" aria-controls="m-a5">
      Fifth Amendment
    </button>
  </h4>
  <div id="m-a5" class="usa-accordion__content usa-prose">
    <p>
      No person shall be held to answer for a capital, or otherwise infamous crime,
      unless on a presentment or indictment of a Grand Jury, except in cases arising
      in the land or naval forces, or in the Militia, when in actual service in time
      of War or public danger; nor shall any person be subject for the same offence
      to be twice put in jeopardy of life or limb; nor shall be compelled in any
      criminal case to be a witness against himself, nor be deprived of life,
      liberty, or property, without due process of law; nor shall private property
      be taken for public use, without just compensation.
    </p>
  </div>
</div>

Guidance

When to use the accordion component

If users will only need a few specific pieces of content within a page.

If you have only a small space to display a lot of content.

When to consider something else

If users need to see most or all of the information on a page.: Use well-formatted text instead.
If there is not enough content to warrant condensing.: Accordions increase cognitive load and interaction cost because users have to make decisions about what headers to click on.

Usability guidance

Make the entire header selectable.: Allow users to click anywhere in the header area to expand or collapse the content; a larger target is easier to manipulate.
Give interactive elements enough space.: Make sure interactive elements within the collapsible region are far enough from the headers that users don't accidentally trigger a collapse. (The exact distance depends on the device.)

Accessibility guidance

Code header areas in the accordion as buttons.: Using a <button type="button"> assures accordions are usable with both screen readers and keyboards.
Use meaningful expansion button labels.: Aim for informative labels like "Explore federal compliance checklists" rather than vague ones like "Click here."
Use aria-controls to associate an accordion button with its related content.: Connect an accordion button control with its appropriate content region by referencing the controlled element's id in the button's aria-controls attribute.
Use unique ids.: Each button has a unique name, aria-controls="[id]", that associates the control with the appropriate region by referencing the controlled element's id.
Accordions use JavaScript to set the hidden values of their content areas.: Each content area will have its hidden attribute set by the component, depending on its corresponding button's aria-expanded attribute. To ensure your content is accessible in the event that the JavaScript does not load or is disabled, you should not manually set hidden on any of your content areas.
You do not need to add text alternatives for the collapsed and expanded accordion states.: These states are set programmatically with JavaScript.

Using the accordion component

Multiselectable accordion groups.: Add the data-allow-multiple attribute to any usa-accordion to create a multiselectable accordion group.
Default an accordion button to open.: Add the aria-expanded="true" attribute to any usa-accordion__button to have that section open by default at page load. When the accordion is initialized, the JavaScript will automatically add aria-expanded="false" attribute to all other accordion buttons.

USWDS Documentation

For more guidance, view the USWDS Accordion Component Documentation.

Settings

Variable	Description
`$theme-accordion-background-color`	Background color of the accordion content.
`$theme-accordion-border-width`	Border width of the bordered accordion.
`$theme-accordion-border-color`	Border color of the bordered accordion.
`$theme-accordion-button-background-color`	Background color of the accordion button.
`$theme-accordion-font-family`	Font family of the accordion.

Variants

Variant	Description
`.usa-accordion--bordered`	Display a border around accordion content.
`.usa-accordion--multiselectable`	Allow multiple accordions to be open at the same time.
`.usa-accordion--bordered--multiselectable`	Bordered and Multiselectable at the same time.

Accordion

Borderless Accordion

First Amendment

Second Amendment

Third Amendment

Fourth Amendment

Fifth Amendment

View Component Code

Bordered Accordion

First Amendment

Second Amendment

Third Amendment

Fourth Amendment

Fifth Amendment

View Component Code

Multiselectable Accordion

First Amendment

Second Amendment

Third Amendment

Fourth Amendment

Fifth Amendment

View Component Code

Guidance

When to use the accordion component

When to consider something else

Usability guidance

Accessibility guidance

Using the accordion component

USWDS Documentation

Settings

Variants