diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index bcb617b..1acae71 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -135,6 +135,8 @@ fieldset {
 }
 legend {
     color: #224422;
+    border-bottom: 1px solid #224422;
+    background: #fff;
 }
 th {
     background: #88AA77;