JSFiddle - React, Tailwind, and code Playground

HTML

<p>The inline style was removed..</p>
<div id="target" style="height:300px; width:300px; background-color:red;"></div>

CSS

div {
    width:100px;
    height:100px;
    background-color:#000000;
}

JavaScript

document.querySelector('#target').removeAttribute('style');