Update app.py

app.py

@@ -160,6 +160,7 @@ css = '''
 .output-image, .input-image, .image-preview {height: 600px !important;object-fit: contain}
 #image_upload{min-height:610px}
 #image_upload [data-testid="image"], #image_upload [data-testid="image"] > div{min-height: 620px}
+#image_output{margin: 0 auto; text-align: center;width:640px}
 #mask_radio .gr-form{background:transparent; border: none}
 #mask_radio .gr-form{background:transparent; border: none; color:#00ff00}
 #word_mask{margin-top: .75em !important}