diff --git a/public/css/front/left_menu.css b/public/css/front/left_menu.css
index 19a01d9..3b75ace 100644
--- a/public/css/front/left_menu.css
+++ b/public/css/front/left_menu.css
@@ -1,6 +1,6 @@
 div#left_menu{
-    /* position:fixed;
-    z-index:100; */
+    position:fixed;
+    z-index:100;
     width:160px;
     border:1px solid silver;
 }