add identation

app.py

@@ -623,9 +623,10 @@ def create_chat_interface():
         border-style: none !important;
         border-width: 0px !important;
     }
-
-    list-style-position: outside;
-    margin-left: 20px;
+    ol {
+        list-style-position: outside; 
+        margin-left: 20px;
+    }
     """
     js = """
     function createIframeHandler() {