uikit_admin-8.x-3.0/templates/form/form--views-exposed-form.html.twig

{#
/**
 * @file
 * Theme override to display a form.
 *
 * Available variables
 * - attributes: A list of HTML attributes for the wrapper element.
 * - children: The child elements of the form.
 *
 * @see template_preprocess_form()
 *
 * @ingroup uikit_themeable
 */
#}
<form{{ attributes.addClass('uk-form-stacked') }}>
  <div class="uk-card uk-card-default uk-card-body">
    {{ children }}
  </div>
</form>