Update app.py

app.py

@@ -83,7 +83,7 @@ with gr.Blocks() as demo:
                     button = gr.Button("Generate", variant="primary")
                 with gr.Column():
                     output = gr.Gallery(label='Generated Images',
-                                         height="auto", rows=2, columns=2)
+                                         height=256, rows=2, columns=2)
                     button.click(demo_infer, inputs=[
                         guidance_scale, randomize_temperature, num_sample_steps,
                         i1k_class, seed],