diff --git a/xmpp.css b/xmpp.css
index 522641a3..081e99d9 100644
--- a/xmpp.css
+++ b/xmpp.css
@@ -1706,6 +1706,11 @@
         background-color: #282828;
     }
 
+    .box {
+        color: #ccc;
+        background-color: #282828;
+    }
+
     nav#toc ol.toc li {
         background-color: rgba(255, 255, 255, 0.05);
     }