diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 4bd595a..4521a09 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -524,6 +524,10 @@ div.code, pre.wiki, pre.literal-block {
     background: #BFADAD;
     border: 1px dotted #2C1F1C;
 }
+.wiki {
+    max-width: 1200px;
+    margin: 0 auto;
+}
 .wiki-toc, #prefs, #tabs {
     background: #fff;
     border: 1px solid #4E6A91;