JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://raw.githack.com/Nycto/PicoModal/master/src/picoModal.js"></script>

JavaScript

picoModal("Ah, the pitter patter of tiny feet in huge combat boots.")
      .beforeShow(function (modal, event) {
          if ( !confirm("Are you sure you want to open this modal?") ) {
              event.preventDefault();
          }
      })
      .show();