JSFiddle - React, Tailwind, and code Playground

HTML

<div id="division"></div>

JavaScript

var div = document.getElementById("division");

div.runtimeStyle.marginLeft = "12em";
div.runtimeStyle.left = "11em";

alert(div.runtimeStyle.left); // 11em

$(div).outerWidth(true);

alert(div.runtimeStyle.left); // 12em