diff --git a/_static/css/rtd_theme_mods.css b/_static/css/rtd_theme_mods.css
index e449bde..29cbbf8 100644
--- a/_static/css/rtd_theme_mods.css
+++ b/_static/css/rtd_theme_mods.css
@@ -1,20 +1,7 @@
 /*
- * Copyright 2019-present Open Networking Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.  */
-
-/* Don't restrict content width on the RTD theme
- * from: https://stackoverflow.com/a/32898444 */
+ SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+ SPDX-License-Identifier: Apache-2.0
+ */
 
 .wy-nav-content {
   max-width: none;