18F/web-design-standards

<ul class="usa-accordion">
  <li>
    <button type="button" class="usa-accordion__button" aria-controls="collapsible-1">
      Section one
    </button>
    <div id="collapsible-1" class="usa-accordion__content">
    </div>
  </li>
  <li>
    <button type="button" class="usa-accordion__button" aria-controls="collapsible-2">
      Section two
    </button>
    <div id="collapsible-2" class="usa-accordion__content">
    </div>
  </li>
</ul>