better_field_descriptions-8.x-1.5/templates/better-field-descriptions-fieldset.html.twig

{#
/**
 * @file
 * Better field descriptions theme implementation of a fieldset description.
 *
 * Available variables:
 * - {{ label }}: The label of the description.
 * - {{ description }}: The description itself.
 */
#}
<details class="collapsible collapsed form-wrapper better-descriptions">
  <summary class="fieldset-legend">{{ label }}
    {% if required %}
      <legend>
        <span class="fieldset-legend js-form-required form-required"></span>
      </legend>
    {% endif %}
  </summary>
  <div class="details-wrapper">{{ description }}</div>
</details>