Update app.py

app.py

@@ -110,7 +110,7 @@ with gr.Blocks(css=css) as demo:
 
               with gr.Row():
                 width = gr.Slider(label="Width", value=640, minimum=64, maximum=1024, step=8)
-                height = gr.Slider(label="Height", value=640, minimum=64, maximum=1024, step=8)
+                height = gr.Slider(label="Height", value=960, minimum=64, maximum=1024, step=8)
 
               seed = gr.Slider(0, 2147483647, label='Seed (0 = random)', value=0, step=1)