index.php

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title>HTML5 basic skeleton</title>
  <link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"> 
  <link rel="stylesheet" type="text/css" href="css/custom.css"> 

  <script type="text/javascript" src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
  <script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
  <script type="text/javascript" src="js/custom.js"></script>
  <!--[if lt IE 9]>
    <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
  <![endif]-->
</head>
<body>
    <h1>Click Me!</h1>
    <div id="gj-counter-box">
      <h1 id="gj-counter-num"></h1>
    </div>
</body>
</html>