uswds_base-8.x-2.0-alpha1/templates/form/details.html.twig

{#
/**
 * @file
 * Default theme implementation for a details element.
 *
 * Available variables
 * - attributes: A list of HTML attributes for the details element.
 * - errors: (optional) Any errors for this details element, may not be set.
 * - title: (optional) The title of the element, may not be set.
 * - description: (optional) The description of the element, may not be set.
 * - children: (optional) The children of the element, may not be set.
 * - value: (optional) The value of the element, may not be set.
 *
 * @see template_preprocess_details()
 *
 * @ingroup themeable
 */
#}
<ul class="usa-accordion-bordered usa-unstyled-list">
  {%
    set summary_classes = [
      required ? 'js-form-required',
      required ? 'form-required',
    ]
  %}
  <li>
    {%- if uncollapsible and title -%}
    <h4 class="uswds-uncollapsible-title">{{ title }}</h4>
    {% elseif title %}
    <button type="button" aria-controls="{{ attributes.id }}-content"{{ summary_attributes.addClass(summary_classes) }}>{{ title }}</button>
    {%- endif -%}

    {% if errors %}
    <div>
      {{ errors }}
    </div>
    {% endif %}
    <div id="{{ attributes.id }}-content" class="usa-accordion-content">
      {{ description }}
      {{ children }}
      {{ value }}
    </div>
  </li>
</ul><!-- USWDS fieldset end -->