<html> <head> <title>File Upload</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.7.1/min/dropzone.min.css"> </head> <body> <h1>File Upload</h1> <form action="{{ url_for('upload_files') }}" class="dropzone"> </form> <script src="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.7.1/min/dropzone.min.js"></script> </body> </html>