when i click on main category like Kundan it's not working, thats is my code:
<div class="collapse navbar-collapse" id="mainNav">
<ul class="nav navbar-nav">
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Kundan</a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Bangles</a></li>
</ul>
</li>
</ul>
</div>