<script src=" https://cdn.jsdelivr.net/npm/datatables-select@1.1.0/js/dataTables.select.min.js "></script>
<link href=" https://cdn.jsdelivr.net/npm/datatables-select@1.1.0/dist/css/select.dataTables.min.css " rel="stylesheet">
No default CSS file set by the package author so the URL is guessed. You can always browse all package files to use another one.