<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ $("#btn1").click(function(){ $("div").animate({height: "150px"}); $("div").animate({width: "150px"}); $("div").delay(1200).animate({height: "300px"}); });});</script></head><body><p>This example demonstrates the animate() method with three merged boxes.</p><p>The third box is set to delay() for 1200 milliseconds.</p><div style="background:purple;height:75px;width:75px;margin:6px;"></div><p><button id="btn1">Animate</button></p></body></html>