diff --git a/trac/htdocs/common/css/trac.css b/trac/htdocs/common/css/trac.css
index 2a23de9..e713004 100644
--- a/trac/htdocs/common/css/trac.css
+++ b/trac/htdocs/common/css/trac.css
@@ -287,7 +287,7 @@ label.disabled {
 .nav ul {
     list-style:none;
     margin:0;
-    font-size: 0.9em !important;
+    font-size: 0.9em;
 }
 .nav li {
     border-right:1px solid #d7d7d7;
@@ -305,14 +305,15 @@ label.disabled {
 
 #mainnav { /*url(../topbar_gradient.png)*/
     background:#945973  0 0;
-    font:normal 1em verdana,'Bitstream Vera Sans',helvetica,arial,sans-serif;
-    margin:.66em 0 .33em;
+    font: normal 1em verdana,'Bitstream Vera Sans',helvetica,arial,sans-serif;
+    margin: .66em 0 .33em;
     padding:.2em 0;
     border: none;
 }
 #mainnav li {
     border: none;
-    padding:.25em 0;
+    padding: 0;
+    border-right: 1px solid #fff;
 }
 #mainnav :link, #mainnav :visited {
     background: transparent url(../dots.gif) 0 0 no-repeat;