 <header class="main-header">
        <a href="../index2.html" class="logo"><img src="../img/logo_netbox.png" width="150" /></a>
        <!-- Header Navbar: style can be found in header.less -->
        <nav class="navbar navbar-static-top" role="navigation">
          <!-- Sidebar toggle button-->
          <a href="#" class="sidebar-toggle" data-toggle="offcanvas" role="button">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </a>
          <div class="navbar-custom-menu">
            
          </div>
        </nav>
      </header>