make app more beautiful

app.py

@@ -84,11 +84,14 @@ body { background: #f0f2f5; font-family: 'Segoe UI', Tahoma, sans-serif; }
 # ─── Blocks 레이아웃 ──────────────────────────────────────────────────
 with gr.Blocks(css=custom_css, title="Donut OCR App") as demo:
     # 헤더
-    with gr.HTML(elem_classes="header"):
-        gr.HTML("""
-            <h1>📄 Donut OCR</h1>
-            <p>Industrial AI Engineering Week 8 Assignment</p>
-        """)
+    gr.HTML(
+        """
+        <div class="header">
+          <h1>📄 Donut OCR</h1>
+          <p>Industrial AI Engineering Week 8 Assignment</p>        
+        </div>
+        """
+    )
 
     # 입력/출력 영역
     with gr.Row():
@@ -102,8 +105,13 @@ with gr.Blocks(css=custom_css, title="Donut OCR App") as demo:
     run_btn.click(fn=ocr_donut, inputs=image_input, outputs=result_box)
 
     # 푸터
-    with gr.HTML(elem_classes="footer"):
-        gr.HTML("<p>Powered by Naver Clova Donut • Built with 💜 by You</p>")
+    gr.HTML(
+        """
+        <div class="footer">
+          <p>Powered by Naver Clova Donut • Built with 💜 by You</p>
+        </div>
+        """
+    )
 
 # Spaces 실행
 demo.launch(