Update app.py

app.py

@@ -62,7 +62,7 @@ image_blocks = gr.Blocks(css=css)
 with image_blocks as demo:
     gr.HTML(read_content("header.html"))
     with gr.Group():
-        with gr.Box():
+        with gr.Group():
             with gr.Row():
                 with gr.Column():
                     image = gr.Image(source='upload', tool='sketch', elem_id="image_upload", type="pil", label="Shadow Image").style(height=400)