Update app.py

app.py

@@ -198,7 +198,7 @@ with gr.Blocks(css="""
     sample_text = gr.Textbox(label="Try typing here:", value="The quick brown fox jumps over the lazy dog.")
     # When font_choice changes, call set_font_size (returns gr.skip() so value remains unchanged)
     font_choice.change(
-        fn=set_font_size,
+        fn=None,
         inputs=font_choice,
         outputs=[],  # No output updated by Python.
         js=js_callback  # JS callback updates document's font size.