Update app.py

app.py

@@ -470,7 +470,7 @@ def build_ui(evaluate_fn):
             verdict_display = verdict or ""
         return verdict_display, accuracy, summary, issues, error
 
-    with gr.Blocks(css=CUSTOM_CSS, title="Python Code Evaluator") as demo:
+    with gr.Blocks(title="Python Code Evaluator") as demo:
 
         gr.HTML(HEADER_HTML)
 
@@ -536,4 +536,4 @@ def build_ui(evaluate_fn):
 # ---------------------------------------------------------------------------
 if __name__ == "__main__":
     app = build_ui(validate_and_evaluate)
-    app.launch(server_name="0.0.0.0", server_port=7860, share=False, show_error=True)
+    app.launch(server_name="0.0.0.0", server_port=7860, share=False, show_error=True, css=CUSTOM_CSS)