Start with empty paste-friendly HTML input

app.py

@@ -1382,11 +1382,10 @@ with gr.Blocks(title="Image Generator for HTML Games") as demo:
             gallery = gr.Gallery(label="Generated assets", columns=2, height=300)
 
         with gr.Column(scale=2):
-            html_input = gr.Code(
+            html_input = gr.Textbox(
                 label="Original HTML game code",
-                value=STARTER_HTML,
-                language="html",
                 lines=18,
+                placeholder="Paste your full HTML game code here.",
             )
             output_code = gr.Code(
                 label="Rewritten HTML with embedded images",
@@ -1405,7 +1404,7 @@ with gr.Blocks(title="Image Generator for HTML Games") as demo:
             )
 
     gr.Markdown("## Game preview")
-    preview = gr.HTML(build_preview(STARTER_HTML))
+    preview = gr.HTML("")
 
     generate_btn.click(
         fn=generate_images_and_game,