You can edit / change the code and click run button <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>mouseup 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> Here is the demo mouseup demo. <p>Try to Press mouse and release here.</p> <script> $( "p" ) .mouseup(function() { $( this ).append( "<br/><span style='color:green;'>Mouse up event fired." ); }) </script>