[MarkFL]

You could hack your template(s) to manually add the HTML you want.

However, your best bet (IMO) would be to do it using a plugin, so that you don't have to hack your templates and it will be there in all your styles, and any future styles you may add as well.

You would likely have to also create a plugin that auto-edits the template(s) to add a template hook at the exact location you want the added elements to be.

Doing it via plugins would be more complicated up front, but the payoff is worth it I think.