<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ $("button").click(function(){ $("p").toggle(); });});</script></head><body><button>Toggle between hiding and showing the paragraphs</button><p>This is a paragraph with little content.</p><p>This is another small paragraph.</p></body></html>