Update app.py

app.py

@@ -487,9 +487,7 @@ footer {
 # =========================================================
 
 with gr.Blocks(
-    title="Chat with Documents",
-    theme=gr.themes.Base(),
-    css=custom_css
+    title="Chat with Documents"
 ) as demo:
 
     # Store the conversational chain
@@ -594,4 +592,7 @@ with gr.Blocks(
 # =========================================================
 
 if __name__ == "__main__":
-    demo.queue().launch()
+    demo.queue().launch(
+        theme=gr.themes.Base(),
+        css=custom_css
+    )