JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
    
    <div id="screensaver" style="width:100%; height:100%; background-color:#000000; display:none;" > &nbsp; </div>
    
</body>
</html>

JavaScript

$(function()
{ 
    
    $('body').live('mousemove', function (e)
    {
     
      if (e.type == 'mousemove')
      {
        clearTimeout(s_saver);
        s_saver = setTimeout('$(\'#screensaver\').fadeIn();', 4000);
        $('#screensaver').hide();          
      }
      
    });  


})