protected function setContent(array $contents)
    {

        if($contents && is_array($contents))
        {
            foreach($contents as $attrib => $values)
            {
                $this->_contents .= '<div class="tab-pane" id="'.$values['id'].'"><div class="row"><div class="col-md-12">'.$values['content'].'</div></div></div>';
            }
        }
    }