<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ var x; $("#btn1").click(function(){ x = $("p").detach(); }); $("#btn2").click(function(){ $("body").prepend(x); });});</script></head><body><p>This is a paragraph.</p><button id="btn1">Remove p element</button><button id="btn2">Restore p element</button></body></html>