https://www.quora.com/Is-JavaScript-hard-to-learn/answers/75856142
Đăng nhập, đăng ký, liên hệ, điền thông tin visa
https://w3lessons.info/demo/bootstrap-modal-forms.php
https://w3lessons.info/2013/02/27/how-to-delete-multiple-rows-from-a-table-with-jquery/
https://w3lessons.info/2018/02/23/top-20-useful-jquery-code-snippets-web-developers-2018/
https://w3lessons.info/2017/09/27/bootstrap-fixed-table-header-using-css/
https://w3lessons.info/2017/08/05/facebook-style-highlight-status-update-box-using-jquery-css/
