如何将此Javascript添加到我的wordpress网站？

I have something put together on codepen that I want to add to my wordpress site. I am currently developing locally and I can't seem to get the javascript to work. Yes, I read on the codex that you have to register and then enqueue the script. That doesnt work for me....unless I'm missing something. I even tried just putting the script in my header, but that didnt work either. I'm a bit lost and would appreciate some help....its working in codepen fine.I have something put together on codepen that I