diff --git a/common/gallery.css b/common/css/gallery.css
similarity index 100%
rename from common/gallery.css
rename to common/css/gallery.css
diff --git a/common/jmenu.css b/common/css/jmenu.css
similarity index 100%
rename from common/jmenu.css
rename to common/css/jmenu.css
diff --git a/common/print.css b/common/css/print.css
similarity index 100%
rename from common/print.css
rename to common/css/print.css
diff --git a/common/styles.css b/common/css/styles.css
similarity index 100%
rename from common/styles.css
rename to common/css/styles.css
diff --git a/common/header.php b/common/header.php
index 2b04ba0..690a408 100644
--- a/common/header.php
+++ b/common/header.php
@@ -39,9 +39,9 @@
   ?>
   <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
   <title><?php $title = Title(); echo $title;?></title>
-  <link href="/common/styles.css?v=<?php echo date('his'); ?>" type="text/css" rel="stylesheet"/>
-  <link href="/common/jmenu.css?v=<?php echo date('his'); ?>" type="text/css" rel="stylesheet"/>
-  <link href="/common/print.css?v=<?php echo date('his'); ?>" type="text/css" media="print" rel="stylesheet"/>
+  <link href="/common/css/styles.css?v=<?php echo date('his'); ?>" type="text/css" rel="stylesheet"/>
+  <link href="/common/css/jmenu.css?v=<?php echo date('his'); ?>" type="text/css" rel="stylesheet"/>
+  <link href="/common/css/print.css?v=<?php echo date('his'); ?>" type="text/css" media="print" rel="stylesheet"/>
   <script type="text/javascript" src="/common/js/page_format.js?v=<?php echo date('his'); ?>"></script>
 </head>
 <body lang="en-US">
