JSFiddle - React, Tailwind, and code Playground

by skirtle

HTML

<div style="height: 200px; width: 200px; border: 1px solid red; overflow: auto;">
  <div style="height: 300px; width: 150px; border: 1px solid green; overflow: auto">
    <div style="height: 400px; width: 100px; border: 1px solid blue;">
    </div>
  </div>
</div>

JavaScript

document.addEventListener('scroll', function(ev) {
  console.log(ev.target)
}, true)