<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div id="topo">
<div class="container">
<div class="row">
<div class="col-md-6 col-ms-6 col-xs-6" id="logo-topo">
<a href="index.php"><h2>LOGO</h2></a>
</div>
<div class="col-md-6 col-ms-6 col-xs-6" id="abre-menu-topo">
<a href="#" class="btn-collapse">
<div class="lista-collapse"></div>
<div class="lista-collapse"></div>
<div class="lista-collapse"></div>
</a>
</div>
</div>
<div class="row">
<ul id="menu-topo">
<li><a href="index.php">INÍCIO</a></li>
<li><a href="portfolio.php">PORTFÓLIO DE PROJETOS</a></li>
<li><a href="como-feito.php">ETAPAS DO PROCESSOS</a></li>
<li><a href="#contato" class="dentro">FALE CONOSCO</a></li>
</ul>
</div>
</div>
</div>