Fix login.

main/inc/lib/api.lib.php

@@ -3304,10 +3304,10 @@ function api_not_allowed($print_headers = false, $message = null)
         // If the user has no user ID, then his session has expired
         $action = api_get_self().'?'.Security::remove_XSS($_SERVER['QUERY_STRING']);
         $action = str_replace('&', '&', $action);
-        $form = new FormValidator('formLogin', 'post', $action, null, array('class'=>'form-stacked'));
-        $form->addElement('text', 'login', null, array('placeholder' => get_lang('UserName'), 'class' => 'span3 autocapitalize_off')); //new
-        $form->addElement('password', 'password', null, array('placeholder' => get_lang('Password'), 'class' => 'span3')); //new
-        $form->addElement('style_submit_button', 'submitAuth', get_lang('LoginEnter'), array('class' => 'btn span3'));
+        $form = new FormValidator('formLogin', 'post', $action, null, array(), FormValidator::LAYOUT_BOX_NO_LABEL);
+        $form->addElement('text', 'login', null, array('placeholder' => get_lang('UserName'), 'class' => 'autocapitalize_off'));
+        $form->addElement('password', 'password', null, array('placeholder' => get_lang('Password')));
+        $form->addButton('submitAuth', get_lang('LoginEnter'), '', 'primary');
 
         // see same text in auth/gotocourse.php and main_api.lib.php function api_not_allowed (above)
         $content = Display::return_message(get_lang('NotAllowed'), 'error', false);