Roar is a wonderful , responsive, customisable, accessible (WAI-ARIA), zero-dependency, vanilla JavaScript alert/confirm replacement.

Roar automatically centers itself on the page and looks great no matter if you’re using a desktop computer, mobile or tablet.

Roar is free, tiny and it works in any browser.

See it in action here:
https://getbutterfly.com/roar-vanill...m-replacement/

Thank you!