版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/okayNav/2.0.4/css/common.min.css
- https://cdn.bootcdn.net/ajax/libs/okayNav/2.0.4/css/okayNav.min.css
- https://cdn.bootcdn.net/ajax/libs/okayNav/2.0.4/js/jquery.okayNav-min.js