diff --git a/css/_fileuploader.css b/css/_fileuploader.css
index 415d5da..0b7cc8b 100644
--- a/css/_fileuploader.css
+++ b/css/_fileuploader.css
@@ -1,3 +1,7 @@
+/**
+ * This file provides the styles for the file uploader
+ * used in the media manager (both fullscreen and popup).
+ */
 
 .qq-uploader {
     position: relative;
diff --git a/css/_tabs.css b/css/_tabs.css
index 8bfb676..de544fd 100644
--- a/css/_tabs.css
+++ b/css/_tabs.css
@@ -1,3 +1,6 @@
+/**
+ * This file provides the styles for general tabs.
+ */
 
 .dokuwiki ul.tabs {
     padding: 0;