fix bug

app.py

@@ -232,9 +232,9 @@ with gr.Blocks(css=css) as demo:
                 guidance = gr.Slider(label="Guidance scale", value=7.5, maximum=15)
                 steps = gr.Slider(label="Steps", value=25, minimum=2, maximum=100, step=1)
 
-              # with gr.Row():
-              #   width = gr.Slider(label="Width", value=512, minimum=64, maximum=512, step=8)
-              #   height = gr.Slider(label="Height", value=512, minimum=64, maximum=512, step=8)
+              with gr.Row():
+                width = gr.Slider(label="Width", value=512, minimum=64, maximum=512, step=8)
+                height = gr.Slider(label="Height", value=512, minimum=64, maximum=512, step=8)
 
               seed = gr.Slider(0, 2147483647, label='Seed (0 = random)', value=0, step=1)