diff --git a/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb b/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb
index 1aeff6c1b9..9878c2747e 100644
--- a/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/rescues/layout.erb
@@ -113,6 +113,8 @@
     a { color: #980905; }
     a:visited { color: #666; }
     a:hover { color: #C52F24; }
+
+    <%= yield :style %>
   </style>
 
   <script>
diff --git a/actionpack/lib/action_dispatch/middleware/templates/routes/_route_wrapper.html.erb b/actionpack/lib/action_dispatch/middleware/templates/routes/_route_wrapper.html.erb
index dc17cb77ef..9026c4eeb2 100644
--- a/actionpack/lib/action_dispatch/middleware/templates/routes/_route_wrapper.html.erb
+++ b/actionpack/lib/action_dispatch/middleware/templates/routes/_route_wrapper.html.erb
@@ -1,7 +1,7 @@
-<style type='text/css'>
-  #route_table td {padding: 0 30px;}
-  #route_table    {margin:  0 auto 0;}
-</style>
+<% content_for :style do %>
+  #route_table td { padding: 0 30px; }
+  #route_table    { margin:  0 auto 0; }
+<% end %>
 
 <table id='route_table' class='route_table'>
   <thead>
diff --git a/railties/lib/rails/templates/layouts/application.html.erb b/railties/lib/rails/templates/layouts/application.html.erb
index 3b09ef53a3..7352d48e7b 100644
--- a/railties/lib/rails/templates/layouts/application.html.erb
+++ b/railties/lib/rails/templates/layouts/application.html.erb
@@ -24,6 +24,8 @@
     a:hover { color: #fff; background-color:#000; }
 
     h2 { padding-left: 10px; }
+
+    <%= yield :style %>
   </style>
 </head>
 <body>
