diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 2a6d694..fda8fda 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -27,6 +27,7 @@ h1, h2, h3 {
     background: #C46300;
     -moz-border-radius-topleft:5px;
     -moz-border-radius-topright:5px;
+    border: none;
 }
 .nav ul {text-align: right;}
 #mainnav :link, #mainnav :visited {