JSFiddle - React, Tailwind, and code Playground
HTML
<div></div>
CSS
div {
width: 200px;
height: 200px;
background-color: red;
transition: border-radius .5s;
}
div:hover {
border-radius: 100px;
}
JavaScript
$(function() {
var div = $('div');
var property = div.css('transition-property');
var lastValue = div.css(property);
setInterval(function() {
if(lastValue !== div.css(property)) {
console.log('changed!');
}
lastValue = div.css(property);
}, 10);
});