Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("#btn").click(function(){
    $("#box").animate({
      height: "300px",
      width: "300px"
    }, {
      duration: 5000,
      easing: "linear",
      complete: function(){
        $(this).after("<p>Animation is complete!</p>");
      }
    });
  });
});
</script>
</head>
<body>

<button id="btn">Animate height & width</button>

<div id="box" style="background:#98bf21;height:100px;width:100px;margin:6px;"></div>

</body>
</html>