head.html

<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta content="EFREI PARIS" name="author">
<meta name="description" content="Hoppy learning">

<!-- Style Sheet 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">-->
<link rel="stylesheet" href="css/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet" href="css/bootstrap.css">
<link href="css/boot_switch.css" rel="stylesheet" type="text/css"><!-- On échappe pas grâce aux "!!" -->
<link href="css/bouncing_arrow.css" rel="stylesheet" type="text/css">
<link href="css/general.css" rel="stylesheet" type="text/css">
<!--<link href="https://fonts.googleapis.com/css?family=Raleway:100,600" rel="stylesheet" type="text/css">-->

<!-- Java Script -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
<script src="js/scroll.js" type="text/javascript"></script>
<script src="js/bootstrap.min.js" type="text/javascript"></script>
<script src="js/bootstrap.js" type="text/javascript"></script>