JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE HTML>
<html>
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    <title>Coverflow13</title>
    <style type="text/css" media="screen">
        #square {
            width: 40px;
            height: 60px;
            margin-left: 20px;
            background: red;
        }
    </style>
</head>
<body>
    <input type="button" value="(wrong) Move the red square" onclick="jQuery('#square').animate({marginLeft: '=0'}, 500);" />
    <input type="button" value="(correct) Move the red square" onclick="jQuery('#square').animate({marginLeft: '0'}, 500);" />
    <div id="square">
    </div>
</body>
</html>