<aside class="nav-options">
  <a class="nav-brand" href="#">
    IS
  </a> 
  <div class="navbar-collapse" id="navbarSupportedContent">
    <ul>
      <li class="active"><a href="dashboard.php" data-placement="right" data-toggle="tooltip" class="tip-right" data-original-title="Dashboard"><img src="images/ndashboard.png"></a></li>
      <li><a href="projects.php" data-placement="right" data-toggle="tooltip" class="tip-right" data-original-title="Projects"><img src="images/to-do-list.png"></a></li>
      <li><a href="settings.php" data-placement="right" data-toggle="tooltip" class="tip-right" data-original-title="Setting"><img src="images/nsetting.png"></a></li> 
     
    </ul>   
  </div>
</aside>