diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index 9916aaf..724b9d8 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -59,10 +59,10 @@ p {
 
 #mainnav {
     background: #945973;
-    border-color: #224422;
+    border: none;
 }
 #mainnav li {
-    border-color: #224422;
+    border: none;
 }
 #footer {
   display: none;