you can see the results here https://www.dropbox.com/s/98t17x9u9mjjsyf/Screenshot%202013-12-03%2008.02.05.png and we have these available http://getbootstrap.com/components/

behat_shared_views.inc

    $form['questions'] = array(
        '#type' => 'fieldset',
        '#title' => t('<i class="glyphicon glyphicon-arrow-down"></i>Build your test using Steps below'),
        '#attributes' => array('class' => ''),
        '#weight' => -100,
        '#collapsible' => FALSE,
        '#collapsed' => FALSE,
    );