diff --git a/sphinx/source/_static/custom.css b/sphinx/source/_static/custom.css
index 827ccb0baf..148978a414 100644
--- a/sphinx/source/_static/custom.css
+++ b/sphinx/source/_static/custom.css
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 .wy-nav-content {
   max-width: initial;
 }
diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index 095a1863c4..4a810d29e4 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {themes as prismThemes} from 'prism-react-renderer';
 import remarkMath from 'remark-math';
 import rehypeKatex from 'rehype-katex';
diff --git a/website/sidebars.js b/website/sidebars.js
index b0da534bd1..d529823860 100644
--- a/website/sidebars.js
+++ b/website/sidebars.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 const tutorials = () => {
   const allTutorialMetadata = require('./tutorials.json');
   const tutorialsSidebar = [{
diff --git a/website/src/css/customTheme.css b/website/src/css/customTheme.css
index 8a42c3fcef..8561e64f24 100644
--- a/website/src/css/customTheme.css
+++ b/website/src/css/customTheme.css
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 :root{
   --ifm-color-primary-lightest: #F7C38B;
   --ifm-color-primary-lighter: #F5AE61;