_layouts/wrapper.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="shortcut icon" type="image/png" href="../assets/images/iuslogo.png">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="../style.css" >
    <link href="https://fonts.googleapis.com/css?family=IBM+Plex+Sans&display=swap" rel="stylesheet">
    <link rel='stylesheet' href='https://use.fontawesome.com/releases/v5.7.0/css/all.css'>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
    <title>{{ page.title }}</title>
</head>
<body>
    {% include header.html  %}
    <div>
            {{ content }}
    </div>
    {% include footer.html  %}
</body>
</html>