una/template/designbox_container.html

<div class="bx-page-block-container__class_add__ my-4 lg:my-6 first:mt-2 lg:first:mt-3 last:mb-2 lg:last:mb-3" <bx_if:show_html_id>id="__html_id__"</bx_if:show_html_id>>__content__</div>