diff --git a/.gitattributes b/.gitattributes
index 9ff13f2d..10a6f2b4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -346,6 +346,7 @@ bureau/admin/sql_users_password.php -text
 bureau/admin/sql_users_rights.php -text
 bureau/admin/stats_members.php -text
 bureau/admin/styles/passwordStrengthMeter.css -text
+bureau/admin/styles/style-empty.css -text
 bureau/admin/styles/style-hw.css -text
 bureau/admin/styles/style.css -text
 bureau/admin/trash_dateselect.php -text
diff --git a/bureau/admin/head.php b/bureau/admin/head.php
index dc446eaf..4a58afa2 100644
--- a/bureau/admin/head.php
+++ b/bureau/admin/head.php
@@ -36,6 +36,9 @@ if (!$charset) $charset="UTF-8";
 <!-- <link rel="stylesheet" href="styles/style-hw.css" type="text/css" /> -->
 <link rel="stylesheet" href="styles/passwordStrengthMeter.css" type="text/css" />
 
+<link rel="stylesheet" href="styles/style-empty.css" type="text/css" />
+<link rel="alternate stylesheet" href="styles/style-hw.css" type="text/css" title="Halloween" />
+
 <link rel="Shortcut Icon" href="favicon.ico" type="image/ico" />
 <link rel="icon" href="favicon.ico" type="image/ico" />
 
diff --git a/bureau/admin/styles/style-empty.css b/bureau/admin/styles/style-empty.css
new file mode 100644
index 00000000..e69de29b