JSFiddle - React, Tailwind, and code Playground
by Peter Aad
HTML
<div class="progressBar">
<div class="progressBarIndicator">
</div>
</div>
CSS
.progressBar{background-color: #fff; height:20px;}
.progressBarIndicator{background-color: #000; height:20px;}
JavaScript
$('.progressBarIndicator').css("background", "red");