JSFiddle - React, Tailwind, and code Playground

HTML

<input value="press" type="button" onclick="myclick()">
 <div id="div">
 
 </div>

CSS

#div{width:100px;height:100px; border: 1px solid black; transition: width 0.3s, height 0.3s;}

JavaScript

function myclick(){
	document.getElementById("div").style.height="200px"
}