Update app.py

app.py

@@ -409,7 +409,8 @@ with gr.Blocks() as demo:
                 _Try out the showcase mode._
                 """)
                 with gr.Row():
-                    demo_btn = gr.Button("Showcase with example data", variant="primary")
+                    with gr.Column():
+                        demo_btn = gr.Button("Showcase with example data", variant="primary")
                     gr.Markdown("""
                         #### Run in showcase mode or use your own data