JSFiddle - React, Tailwind, and code Playground

HTML

<div><div>

<button id='test'>
test</button>

CSS

div { height : 200px; background-color: red}

.saving {  background-color: blue}

JavaScript

$('#test').click( function(){
  $('div').addClass('saving').delay(2000).queue(function(next ){
     $(this).removeClass('saving');
     next();
  })
});