<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<header id="header">
<div id="topbar" class="custom-back-color">
<div class="topbar-left">
<ul class="st-list topbar-items">
<li><a href="index.php?lang=en">Português (BR) <img alt="Português" title="Português" src="imagens/BR.png" style="position:relative;left:2px;top:-2px" alt=""/></a></li>
</ul>
</div>
<div class="topbar-right">
<ul class="st-list topbar-items">
<li><a class="top-right-link" href="../login.html"><img src= "imagens/user.png"></a></li>
<li>
<a class="top-right-link" href="../cadastro.html">Cadastro</a>
</li>
</ul>
</div>
</div>
<div class="container-fluid" style="padding-left:50px;padding-right:50px;">
<nav class="navbar">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#website-menu" aria-expanded="false">
<img src="imagens/menu-grid.gif" alt="Menu" style="position:relative;top:8px;left:5px"/>
</button>