JSFiddle - React, Tailwind, and code Playground
by zaknotzak
HTML
<div id="add-contact">Lorem ipsum dolor sit amet, consectetur adipiscing elit. <br />Aenean id arcu non libero lobortis placerat. Cras congue lacinia pulvinar. <br />Nullam luctus faucibus arcu vitae varius.
</div>
JavaScript
var height = document.getElementById("add-contact").clientHeight;
alert("#add-contact height: " + height);