JSFiddle - React, Tailwind, and code Playground

by Chuan Shao

HTML

<div class="a">
aaa
</div>
<div class="b">
bbb
</div>

CSS

.a {
  width: 100px;
  height: 100px;
  background: red;
}
.b {
  width: 150px;
  height: 150px;
  background: green;
}
.a.anim {
  width: 150px;
  height: 150px;
}

JavaScript

var a = $('.a');

setInterval(function(){
  a.addClass('anim');
}, 100);
setTimeout(function(){
  setInterval(function(){
    a.removeClass('anim');
  }, 100);
}, 500);