app/views/layouts/backend/application.html.erb
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title><%= content_for?(:title) ? yield(:title) : "Dummy" %></title>
<%= csrf_meta_tags %>
<!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
<!--[if lt IE 9]>
<script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.6.1/html5shiv.js" type="text/javascript"></script>
<![endif]-->
<%= stylesheet_link_tag "backend", :media => "all" %>
<!-- Javascripts
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<%= javascript_include_tag "backend" %>
</head>
<body class="<%= controller_name %> <%= action_name %>">
<div id="wrap">
<%= render 'navigation' %>
<%= render 'action_bar' %>
<div class="container-fluid">
<%= bootstrap_flash %>
<%= yield %>
</div>
</div> <!-- /container -->
<%= render 'footer' %>
</body>
</html>