diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 8473934..9224ea5 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -8,3 +8,6 @@ body {
     width: 100%;
     margin: 0 auto;
 }
+#mainnav {
+    margin: 0;
+}