JSFiddle - React, Tailwind, and code Playground

HTML

<div id="target">Example Text</div>
<button id="stop">STOP</button>

CSS

#target {
    color: blue;
}

JavaScript

var target = document.getElementById("target");
target.style.transition = "color 10000ms ease";
target.style.webkitTransition = "color 10000ms ease";
target.style.MozTransition = "color 10000ms ease";
target.style.color = "red";

var stop = document.getElementById("stop");
stop.onclick = function () {
    target.style.transition = "none";
    target.style.webkitTransition = "none";
    target.style.MozTransition = "none";
}