Tooltips

Tooltips made without any javascript.
Usability
Remember that touchscreens will not have hover. Accordingly, keep tooltips short!
Bootstrap
This uses non-Bootstrap html. If you use this non-JS method, you will not need to include Tether when you upgrade to Bootstrap 4.
Browser Support
Tested in ie9+, Edge, Firefox, Chrome.

See the Pen CSS Tooltips by btn.ninja (@btn-ninja) on CodePen.