JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<body>
    <div id="myDiv"></div>
</body>
</html>

CSS

html, body { height: 100%; }
#myDiv { width: 200px; height: 40%; background: red; }

JavaScript

$(document).ready(function()
{
   $(window).on("resize", function()
   {
        $("#myDiv").text("My height is " + $("#myDiv").height());
   });                                                           
});