sandbox-kinderlandwien/sandbox/sidebar-content-footer.php

<?php if ( is_active_sidebar( 'content-footer' ) ) : ?>
<aside id="content-footer" class="region content-footer">
  <div class="inner">
  <?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar('content-footer') ) : // begin content-footer sidebar widgets ?>
  <?php endif; // end content-footer widgets  ?>
  </div>
</aside>
<?php endif; ?>