diff --git a/css/chat.js b/css/chat.js
new file mode 100644
index 0000000000..f45bf78aa9
--- /dev/null
+++ b/css/chat.js
@@ -0,0 +1 @@
+document.getElementById("main").childNodes[0].style = "max-width: 800px; margin-left: auto; margin-right: auto";