diff --git a/core/modules/overlay/overlay-child-rtl.css b/core/modules/overlay/overlay-child-rtl.css
index 2bc5548..1d44c2a 100644
--- a/core/modules/overlay/overlay-child-rtl.css
+++ b/core/modules/overlay/overlay-child-rtl.css
@@ -1,4 +1,9 @@
 
+/**
+ * @file
+ * This is a JavaScript file that's titled 'overlay-child-rtl.css'
+ */
+ 
 html {
   direction: rtl;
 }
diff --git a/core/modules/overlay/overlay-child.css b/core/modules/overlay/overlay-child.css
index f760c26..858d7a3 100644
--- a/core/modules/overlay/overlay-child.css
+++ b/core/modules/overlay/overlay-child.css
@@ -1,4 +1,9 @@
 
+/**
+ * @file
+ * This is a CSS file that's titled 'overlay-child.css'
+ */
+ 
 .js {
   background: transparent !important;
   overflow-y: scroll;
diff --git a/core/modules/overlay/overlay-child.js b/core/modules/overlay/overlay-child.js
index e78e383..ec57da2 100644
--- a/core/modules/overlay/overlay-child.js
+++ b/core/modules/overlay/overlay-child.js
@@ -1,4 +1,9 @@
 
+/**
+ * @file
+ * This is a JavaScript file that's titled 'overlay-child.js'
+ */
+ 
 (function ($) {
 
 /**
diff --git a/core/modules/overlay/overlay-parent.css b/core/modules/overlay/overlay-parent.css
index dad6d55..e7d10f8 100644
--- a/core/modules/overlay/overlay-parent.css
+++ b/core/modules/overlay/overlay-parent.css
@@ -1,4 +1,9 @@
 
+/**
+ * @file
+ * This is a CSS file that's titled 'overlay-parent.css'
+ */
+ 
 html.overlay-open,
 html.overlay-open body {
   height: 100%;
diff --git a/core/modules/overlay/overlay-parent.js b/core/modules/overlay/overlay-parent.js
index dd7b7ae..44a1571 100644
--- a/core/modules/overlay/overlay-parent.js
+++ b/core/modules/overlay/overlay-parent.js
@@ -1,4 +1,9 @@
 
+/**
+ * @file
+ * This is a CSS file that's titled 'overlay-parent.js'
+ */
+ 
 (function ($) {
 
 /**