I tried to create a navigation bar where it has the following columns: Home, Registration - > Customer Registration & Inquiry - > Customer consultation. When I'm in the query menu I can not access the dropdown of the client master record. Why?
<title>Despesas</title>
<!-- jquery - link cdn -->
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script><!--bootstrap-linkcdn--><linkrel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<!-- Static navbar -->
<!-- Static navbar -->
<nav class="navbar navbar-default navbar-static-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<ul class="nav navbar-nav">
<li><a href="home.php">Home</a></li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" href="#">Cadastro
<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="inserir_pessoa.php">Cadastro de clientes</a></li>
<li><a href="#">x</a></li>
</ul>
</li>
<li class="dropdown active">
<a class="dropdown-toggle" data-toggle="pageSubmenu" href="#">Consultas
<span class="caret"></span></a>
<ul class="dropdown-menu" id="pageSubmenu">
<li><a href="consulta_clientes.php">Consulta de clientes</a></li>
<li><a href="#">x</a></li>
</ul>
</ul>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="sair.php">Sair</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav>
<table class="table">
<thread>
<tr>
<th>Nome</th>
<th>Data de nascimento</th>
<th>Telefone</th>
<th>Endereço</th>
<th>Editar</th>
<th>Excluir</th>
</tr>
</thread>
<tbody>
<?php
foreach($grupo as $pessoa){ ?>
<tr>
<td> <?=$pessoa["nome"]?> </td>
<td> <?=$pessoa["nascimento"]?> </td>
<td> <?=$pessoa["telefone"]?> </td>
<td> <?=$pessoa["endereco"]?></td>
<td></td>
<td></td>
</tr>
<?php
}
?>
</body>