Update app.py

app.py

@@ -110,13 +110,13 @@ with gr.Blocks() as demo:
     gr.Markdown("# ACE it! 📚 — GCSE Biology Tutor")
 
     #Choose topic
-    with gr.Row():
+    with gr.Column():
         with gr.Column(scale=1):
             topic_dropdown = gr.Dropdown(choices=BIO_TOPICS, label="Choose a Biology Topic")
             topic_button = gr.Button("Confirm Topic")
             topic_output = gr.Markdown()
             
-    with gr.Column(scale=2):
+    with gr.Row(scale=2):
         chatbot = gr.ChatInterface(respond, type="messages", title="Ace it!")
 
     topic_button.click(set_topic, inputs=topic_dropdown, outputs=topic_output)