Nicely done! However I have a little bug: bubble is active on page load. I need to click on the input form and outside to hide it.
It's not a bug, it's a feature - I added it so the bubble would show on the thumbnail here in CodePen ;) Simply remove the "active" class from "jfk-bubble" div, and you are good to go.
Need to know how to enable it? Go here.