lib/ui_bibz/ui/core/boxes/components/card_body.rb
def pre_render
      if options[:collapse]
        content_tag :div, class: join_classes("collapse", show), id: options[:collapse], "data-parent": "##{ options[:parent_collapse] }" do
          content_tag :div, @items.join.html_safe, html_options
        end
      else
        content_tag :div, @items.join.html_safe, html_options
      end
    end
def pre_render
      if options[:collapse]
        content_tag :div, class: join_classes("collapse", show), id: options[:collapse], "data-parent": "##{ options[:parent_collapse] }" do
          content_tag :div, @items.join.html_safe, html_options
        end
      else
        content_tag :div, @items.join.html_safe, html_options
      end
    end
See UiBibz::Ui::Core::Component.initialize
 Render html tag