Sweetalert 2
A beautiful, responsive, customizable, accessible (WAI-ARIA) replacement for JavaScript's popup boxes. Zero dependencies. For more info, please visit the plugin's site
Sweetalert 2 use class with .btn .sa-basic, .sa-title-text, .sa-title-error, .sa-buttons, .sa-position, .sa-image
<!-- Plugin Js -->
<script src="assets/bundles/sweetalert2.bundle.js"></script>
<!-- Jquery Page Js -->
<script>
document.querySelector(".sa-basic").addEventListener('click', function(){
Swal.fire("Our First Alert");
});
</script>