<!-- Left side column. contains the logo and sidebar -->
   <aside class="main-sidebar">
     <!-- sidebar: style can be found in sidebar.less -->
        <section class="sidebar">
          <!-- Sidebar user panel -->
          
          <ul class="sidebar-menu" style=" margin-top: 20px;">
            <li class="active treeview">
              <a href="index.php">
                <i class="glyphicon glyphicon-home"></i><span>Home</span> <i ></i>
              </a>
            </li>
	     
            <li>
              <a href="task_register.php">
                <i class="fa fa-file-pdf-o"></i> <span>Task Management</span>
              </a>
           </li>
             
          </ul>
        </section>
      </aside>