JSFiddle - React, Tailwind, and code Playground
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<title>Untitled Document</title>
</head>
<body>
<input type="text" id="hitbox" value="" /><div id="divi"></div>
</body>
</html>JavaScript
document.getElementById('hitbox').onchange(document.getElementById('divi').innerHTML = document.getElementById('hitbox').value;