Opa...
Código HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Título</title>
<link href="template/assets/css/bootstrap.min.css" rel="stylesheet">
<link href="template/assets/css/custom.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-collapse-1" aria-expanded="false">
<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" href="#">Título</a>
</div>
<div class="collapse navbar-collapse" id="navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li>
<a href="novo-ticket.php">sadfasdf</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
<i class="glyphicon glyphicon-user"></i> <span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li><a href="#"><i class="glyphicon glyphicon-edit"></i> Editar perfil</a></li>
<li><a href="novo-ticket.php"><i class="glyphicon glyphicon-open"></i> Submeter um ticket</a></li>
<li role="separator" class="divider"></li>
<li><a href="#"><i class="glyphicon glyphicon-log-out"></i> Sair</a></li>
</ul>
</li>
</ul>
</div>
</div>
</nav>
<section id="main" class="section-main">
<img src="template/assets/images/icons/load.gif" id="loading">
<?php
include("./template/pages/meus-tickets.php");
?>
</section>
<footer class="footer">
<div class="container">
<p class="text-muted">Título © 2016</p>
</div>
</footer>
<script src="template/assets/js/jquery.min.js"></script>
<script src="template/assets/js/bootstrap.min.js"></script>
<script src="template/assets/js/ajax.js"></script>
</body>
</html>
Se quiser eu posto os arquivos completos...é só uma demo mesmo que estou fazendo