Update app.py

app.py

@@ -93,9 +93,9 @@ with gr.Blocks(css=CSS) as demo:
             lines=3,
         )
     with gr.Row():
-        submit = gr.Button(value="Send message", variant="secondary").style(full_width=True)
-        clear = gr.Button(value="New topic", variant="secondary").style(full_width=False)
-        stop = gr.Button(value="Stop", variant="secondary").style(full_width=False)
+        submit = gr.Button(value="Send message", variant="secondary", scale=1)
+        clear = gr.Button(value="New topic", variant="secondary", scale=0)
+        stop = gr.Button(value="Stop", variant="secondary", scale=0)
     with gr.Accordion("Show Model Parameters", open=False):
         with gr.Row():
             with gr.Column():