• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/css/bootstrap.css
• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/css/bootstrap.css.map
• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/css/bootstrap.min.css
• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/css/bootstrap.min.css.map
• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/js/bootstrap.js
• https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/4.0.0-alpha.4/js/bootstrap.min.js