Update app.py

app.py

@@ -4,7 +4,7 @@ import gradio as gr
 def generate_card(name, message):
     # HTML greeting card layout with inline CSS
     html = f"""
-    <div style="background-image: url('https://i.imgur.com/lTxOZXL.jpg');
+    <div style="background-image: url('https://imgur.com/gallery/tried-hand-digital-watercolor-what-do-you-think-9MNLzB3#/t/wallpaper');
                 background-size: cover;
                 color: white;
                 height: 300px;