sidebar.php

 <!-- menu -->
	<button class="btn-nav w3layouts_btn">
		<span class="bar arrow-top-r"></span>
		<span class="bar arrow-middle-r"></span>
		<span class="bar arrow-bottom-r"></span>
	</button>
	<nav class="nav-container hidden hideNav w3_nav">
	  <ul class="nav-list">
		<li class="list-item"><a href="main.php"><i class="glyphicon glyphicon-home" aria-hidden="true"></i></a></li>
		<li class="list-item"><a href="about.php"><i class="glyphicon glyphicon-info-sign" aria-hidden="true"></i></a></li>
		<li class="list-item"><a href="services.php"><i class="glyphicon glyphicon-cog" aria-hidden="true"></i></a></li>
		<li class="list-item active"><a href="product.php"><i class="glyphicon glyphicon-picture" aria-hidden="true"></i></a></li>
		<li class="list-item"><a href="contact.php"><i class="glyphicon glyphicon-envelope" aria-hidden="true"></i></a></li>
		<li class="list-item"><a href="javascript:logout()"><i class="glyphicon glyphicon-log-out" aria-hidden="true"></i></a></li>
	  </ul>
	</nav>