Tertulia for Authors sites are not enabled for any HTML updating on the site. By design, we are all 100% no code in order to keep the sites simple and easy for authors to build and maintain. We hope you will find that you can achieve desired effect using our customization features, but feel free to reach out if you need help.
Can I upload a HTML file or add HTML to my site?
Learn about whether you can upload an HTML file or any HTML to your site.