This is simple Vanilla JS script that will allow you to show one element from the set using basic percentage probability.
- Add js-randomize class to root element,
- Add js-random to every element in the set,
- Optionally you can set data-display for desired value of CSS display (block by default),
- Finally set probability using data-probability on every element (it’s integer without percent sign).
Warning! If you want want compatibility with other browsers use Babelify or any other polyfill for NodeList.prototype.forEach.