diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index 3c4f88f..f1539a3 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -82,10 +82,12 @@ legend {
     background: #fff;
     opacity: 0.7;
 }
-thead th {
+table thead th, table.listing thead th {
     background: #88AA77;
     color: #fff;
     font-weight: bold;
+    -moz-border-radius: 5px;
+    -webkit-border-radius: 5px;
 }
 th a {
     color: #290c00;