JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<div id="div">
    <p>Some content</p>
</div>

CSS

div {
    position: absolute;
    left: 309px;
}

JavaScript

var numericValue = window
    .getComputedStyle(document.getElementById('div'),null)
    .getPropertyValue('left')
    .match(/\d+/);

console.log(numericValue);