In Drupal 7, manage your secondary tabs menu as a block, for better theming purpose.
Download this module in your /modules
directory :
git clone git@github.com:delaBruyne/lth_submenu.git
Then activate it throught Drupal BO or with drush :
drush en lth_submenu -y
In page.tpl.php
:
<?php $primary_tabs = lth_submenu_menu_tabs_primary($tabs);
<?php if (!empty($primary_tabs)): ?>
<ul class="tabs--primary">
<?php print render($primary_tabs); ?>
</ul>
<?php endif; ?>
You can now manage your secondary level as a block and show it anywhere in your theme.