Hi! I'm not sure I can help with this, as it comes down to arbitrary specifics of jQuery and the jQuery plugin you're using. Are you sure the tags are present in the <head> and executed? You might want to use JS to add them and use the prodigymount listener to make sure Prodigy is ready before you try to access HTML content in the annotation cards.
Maybe this is also a bit overkill and a simpler <datalist> would be better for this use case?