diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 68b435b..c3a29e6 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -6,5 +6,5 @@ body {
     background: #fff;
     color: black;
     width: 100%;
-    margin: 0 10%;
+    margin: 0 auto;
 }