Update app.py

app.py

@@ -928,9 +928,9 @@ Example: 'Received {total_slides} slides, {total_slides} scripts, and HTML files
         audio_timeline = ""
         for j, url in enumerate(audio_urls):
             if url:
-                audio_timeline += f'<audio id="audio-{j+1}" controls type="audio/mpeg" src="{url}" style="display: inline-block; margin: 0 10px; width: 200px;"></audio>'
+                audio_timeline += f'<audio id="audio-{j+1}" controls type="audio/mpeg" src="{url}" style="display: inline-block; margin: 0 10px; width: 200px; border: none; border-radius: 30px;"></audio>'
             else:
-                audio_timeline += f'<audio id="audio-{j+1}" controls type="audio/mpeg" src="" style="display: inline-block; margin: 0 10px; width: 200px;"><span>Audio unavailable</span></audio>'
+                audio_timeline += f'<audio id="audio-{j+1}" controls type="audio/mpeg" src="" style="display: inline-block; margin: 0 10px; width: 200px; border: none; border-radius: 30px;"><span>No audio</span></audio>'
         
         slides_info = json.dumps({"htmlFiles": html_file_urls, "audioFiles": audio_urls})
         html_output = f"""
@@ -2307,4 +2307,5 @@ with gr.Blocks(
     demo.css += custom_css
 
 if __name__ == "__main__":
-    demo.launch(allowed_paths=[OUTPUT_DIR])
+    demo.launch(allowed_paths=[OUTPUT_DIR])
+