I need to know how to create a navigation bar with Unsemantic framework (or 960gs).
My menu structure is
<div>
 <ul>
  <li></li>
 </ul>
</div>. 
I have tried so much, but still can't find out the problem.
EDIT
I use wordpress.So it creates navigation menu. the eventual code rendered in the browser is as follows:
<nav role="navigation" class="clearfix black grid-100 grid-parent mobile-grid-100 mar-top10 mar-bottom10" id="wp_nav_menu_wrapper"> 
<div class="grid-container">
 <div class="menu">
  <ul>
   <li class="page_item page-item-2">
     <a href="http://localhost/wpmarket/?page_id=2">ُSample Page</a>
   </li>
   <li class="page_item page-item-5"><a href="http://localhost/wpmarket/?page_id=5">ُSample Page 2</a>
   </li>
  </ul>
 </div>
</div>
</nav>
While my Wordpress markup is as follows:
<div class='grid-100 height-auto black-gray-bg font-tahoma'>
<nav role='navigation' class='clearfix black grid-100 grid-parent mobile-grid-100 mar-top10 mar-bottom10' id='wp_nav_menu_wrapper'> 
    <div class='grid-container'>
    <?php 
        wp_nav_menu(); 
    ?> 
</div>
</nav>
</div>
 
     
    