app/views/layouts/admin/base.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Writefully</title>
<%= stylesheet_link_tag 'admin', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body class='admin <%= controller_name %> <%= action_name %>'>
<%= render 'navbar' %>
<%= yield :action_bar %>
<div id='main' class='container'>
<div class='row'>
<div class='col-md-8 col-md-offset-2'>
<%= render 'flash_messages' %>
<%= yield %>
</div>
</div>
</div>
</body>
</html>