<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ $("button").click(function(){ $("img").attr({width: "150", height: "100"}); });});</script></head><body><img src="img_pulpitrock.jpg" alt="Pulpit Rock" width="284" height="213"><br><button>Set width and height attributes of the image</button></body></html>