JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head>
<style type="text/css"> 

div
{
position:absolute;
bottom:130px;
left:30px;
width:100px;
height:100px;
background:red;
-webkit-transition:height 0.5s; 

}

div:hover
{
height:0px;
}
</style>
</head>
<body>


<div></div>



</body>
</html>