I'm developing a web application and I'm using the bootstrap dropdown menu but it does not work
My <head></head>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script><scriptsrc="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/bootstrap/bootstrap.min.js"></script>
<script src="js/jquery-1.12.0.min.js" type="text/javascript"></script>
<script src="js/jquery.maskedinput.js" type="text/javascript"></script>
<script src="js/jquery.maskedinput.min.js" type="text/javascript"></script>
<script src="bootstrap/bootstrap.min.js" type="text/javascript"></script>
<script src="bootstrap/bootstrap.js" type="text/javascript"></script>
<link rel="stylesheet" href="bootstrap/bootstrap.css">
<link rel="stylesheet" href="css/css.css" type="text/css">
<link rel="stylesheet" href="css/font-awesome.min.css" type="text/css"/>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/owl-carousel/1.3.3/owl.carousel.min.css">
</head>
HTML
<div class="body-wrap" >
<nav class="navbar navbar-inverse" role="navigation" id="azul">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" ></a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<div class="conteudo"><li><a href="#">PAGINA PRINCIPAL</a></li></div>
<div class="conteudo"> <li><a href="#">CONTATO</a></li></div>
<li class="dropdown">
<div class="conteudo"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">PRODUTOS <b class="caret"></b></a></div>
<ul class="dropdown-menu">
<li><a href="#">Camisetas</a></li>
<li class="divider"></li>
<li><a href="#">Calças</a></li>
<li class="divider"></li>
<li><a href="#">Bermudas</a></li>
</ul>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
</div>
JS
$('ul.nav li.dropdown').hover(function() {
$(this).find('.dropdown-menu').stop(true, true).delay(200).fadeIn(500);
}, function() {
$(this).find('.dropdown-menu').stop(true, true).delay(200).fadeOut(500);
});