mapping.pt

<tal:def tal:define="title title|field.title;
                     description description|field.description;
                     errormsg errormsg|field.errormsg;
                     item_template item_template|field.widget.readonly_item_template"
         i18n:domain="deform">
  
  <div class="panel panel-default" title="${description}">
    <div class="panel-heading">${title}</div>
    <div class="panel-body">

      <div tal:condition="description">
        ${description}
      </div>

      <div tal:repeat="child field.children"
           tal:replace="structure child.render_template(item_template)" >
      </div>     

    </div>
  </div>

</tal:def>