app/views/layouts/application.html.erb

<!DOCTYPE html>
<html>
<head>
  <title>RailsJqm</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">
  <%= stylesheet_link_tag "http://code.jquery.com/mobile/latest/jquery.mobile.min.css", :media => "all" %>
  <%= stylesheet_link_tag "application", :media => "all" %>
  <%= javascript_include_tag "application" %>
  <%= javascript_include_tag "http://code.jquery.com/mobile/latest/jquery.mobile.min.js" %>
  <%= csrf_meta_tags %>
</head>
<body>
  <div data-role="page">
    <div data-role="header">
      <h1><%= yield :heading %></h1>
    </div>

    <%= yield :message %>
    <%= yield %>
  </div>
</body>
</html>