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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.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>