diff --git a/core-list.css b/core-list.css
index 1c3db13..5d579ed 100755
--- a/core-list.css
+++ b/core-list.css
@@ -1,3 +1,13 @@
+/*
+ * @license
+ * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+ */
+
 :host {
   display: block;
   overflow: auto;