You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>toggle demo</title> <script src="../../../jquery-1.10.2.js"></script> <script>var clicky_site_ids = clicky_site_ids || []; clicky_site_ids.push(101319977);</script><script async src="//static.getclicky.com/js"></script> <button>Toggle me</button> <p>Text changed now</p> <p style="display: none">Text is being changed</p> <script> $( "button" ).click(function() { $( "p" ).toggle(); }); </script>