diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 8b56e82..8a21c63 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -19,7 +19,14 @@ h1, h2, h3 {
 #mainnav {
     margin: 0;
     background: #C46300;
+    -moz-border-radius-topleft:5px;
+    -moz-border-radius-topright:5px;
 }
+
+#mainnav :link, #mainnav :visited {
+    background-image: none;
+}
+
 #mainnav .active :link, #mainnav .active :visited {
     color: #2C1F1C;
 }