JSFiddle - React, Tailwind, and code Playground

by Michelle Bu

HTML

<button>
  Focus input
</button>

<iframe>
  <input type="text" placeholder="Focus me" />
</iframe>

JavaScript

document.querySelector('button').addEventListener('click', function(ev) {
	document.querySelector('input').focus();
  console.log('The currently-active element is:', document.activeElement);
});