Hi D Sparks,
All seems working fine on our side. That’s really odd!
However, what you’re trying to do cannot be achieve using Customizer options or some code snippet that we could provide. To add/change this feature to your website, the best practice is to create your own child theme and override the template.
For more about creating child themes, please read the following post:
If you have never done this before, we recommend you to require the services from a nearby web developer or from Envato Studio freelancers (https://studio.envato.com/explore/websites-programming). This web platform gives you access to developers who have already experience with theme customizations, and for very competitive prices.
Hope this will help you.