You can customize your Web Support Portal with your own CSS by navigating to Settings > Web Support Portal, then clicking the ‘Customize CSS’ button.
Our CSS customization field enables you to redesign your Web Support Portal in a variety of creative ways based on your company and apps branding. We encourage you to work with your UX designer or front-end developer to implement customization that will work for visitors from all different browsers and device types. For more information, please see our Developers Guide to Web Support Portal.
Below are a few exemplary Web Support Portals which utilized custom CSS: