app/views/layouts/rails_db_info/application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Database Info</title>
<%= stylesheet_link_tag "rails_db_info/application", :media => "all" %>
<%# javascript_include_tag "rails_db_info/application" %>
<%= csrf_meta_tags %>
</head>
<body>
<%= render 'rails_db_info/tables/header' %>
<%= yield %>
</body>
</html>