diff --git a/v1/lib/server/__tests__/__fixtures__/sidebar.js b/v1/lib/server/__tests__/__fixtures__/sidebar.js
index 8da95c2676..38cb7ae74a 100644
--- a/v1/lib/server/__tests__/__fixtures__/sidebar.js
+++ b/v1/lib/server/__tests__/__fixtures__/sidebar.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 module.exports = {
   docs: {
     'First Category': ['doc1', 'doc2'],
diff --git a/v1/lib/server/__tests__/__fixtures__/test.css b/v1/lib/server/__tests__/__fixtures__/test.css
index d0fd55c22c..beff6938d0 100644
--- a/v1/lib/server/__tests__/__fixtures__/test.css
+++ b/v1/lib/server/__tests__/__fixtures__/test.css
@@ -4,6 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
+
 .hljs {
   margin-left: -15px;
   margin-right: -15px;
diff --git a/v1/lib/static/css/prism.css b/v1/lib/static/css/prism.css
index 74099294a5..d783edb5e2 100644
--- a/v1/lib/static/css/prism.css
+++ b/v1/lib/static/css/prism.css
@@ -1,11 +1,16 @@
 /**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
  * Modified prism.js default theme for JavaScript, CSS and HTML
  * Based on dabblet (http://dabblet.com)
  * @author Lea Verou
  */
 
-code[class*="language-"],
-pre[class*="language-"] {
+code[class*='language-'],
+pre[class*='language-'] {
   font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
   text-align: left;
   white-space: pre;
@@ -25,16 +30,16 @@ pre[class*="language-"] {
 }
 
 /* Code blocks */
-pre[class*="language-"] {
+pre[class*='language-'] {
   padding: 1em;
-  margin: .5em 0;
+  margin: 0.5em 0;
   overflow: auto;
 }
 
 /* Inline code */
-:not(pre) > code[class*="language-"] {
-  padding: .1em;
-  border-radius: .3em;
+:not(pre) > code[class*='language-'] {
+  padding: 0.1em;
+  border-radius: 0.3em;
   white-space: normal;
 }
 
@@ -50,7 +55,7 @@ pre[class*="language-"] {
 }
 
 .namespace {
-  opacity: .7;
+  opacity: 0.7;
 }
 
 .token.property,
@@ -88,7 +93,7 @@ pre[class*="language-"] {
 
 .token.function,
 .token.class-name {
-  color: #DD4A68;
+  color: #dd4a68;
 }
 
 .token.regex,
@@ -107,4 +112,4 @@ pre[class*="language-"] {
 
 .token.entity {
   cursor: help;
-}
\ No newline at end of file
+}
diff --git a/v2/test/__fixtures__/simple-site/siteConfig.js b/v2/test/__fixtures__/simple-site/siteConfig.js
index 9fe39b8a33..1bd557fa87 100644
--- a/v2/test/__fixtures__/simple-site/siteConfig.js
+++ b/v2/test/__fixtures__/simple-site/siteConfig.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) 2017-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 module.exports = {
   title: 'Hello',
   tagline: 'Hello World',