add-scripts-and-css.php

<!-- My style -->
<link rel="stylesheet" type="text/css" href="style.css"> 

<!-- Jquery 3.3.1 -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!-- Bootstrap 3.3.7 style and JS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<!-- Jquery-ui script and css -->  
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>

<!-- DataTables Jquery and Bootsrap -->
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.19/css/dataTables.bootstrap.min.css">
<script src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/1.10.19/js/dataTables.bootstrap.min.js"></script>