Update app.py

app.py

@@ -239,7 +239,7 @@ demo = gr.ChatInterface(
     concurrency_limit=200,
     cache_examples=False,
     theme="default",
-    css="""
+    css=
        .chat-container {
             border: 1px solid #ccc;
             border-radius: 5px;
@@ -284,6 +284,6 @@ demo = gr.ChatInterface(
             content: 'Bot';
             font-weight: bold;
         }
-    """,
+    ,
 )
 demo.launch()