Animate using Pre-defined values with jQuery| Tryit Editor for Web Development

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<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script> 
$(document).ready(function(){
    $("button").click(function(){
        $("div").animate({
            height: 'toggle'
        });
    });
});
</script> 
</head>

<body>

<h1>Welcome To T4-Tutorials</h1>

<h2>The Animate using Pre-defined values:</h2>

<button>Start Animation!</button>

<br><br>
<div style="background:red;height:100px;width:100px;position:absolute;"></div>

</body>
</html>