diff --git a/themes/learn2/css/custom.css b/themes/learn2/css/custom.css
index 1669663..cb65015 100644
--- a/themes/learn2/css/custom.css
+++ b/themes/learn2/css/custom.css
@@ -37,3 +37,7 @@ Put your custom CSS in this file.
     color: rgba(200, 200, 200, 0.8);
     opacity: 1; /* something firefox fix */
 }
+
+#main {
+    background: #111111
+}