waypoints - Easily execute a function when you scroll to an element

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/jquery.waypoints.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/jquery.waypoints.min.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/noframework.waypoints.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/noframework.waypoints.min.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/infinite.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/infinite.min.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/inview.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/inview.min.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/sticky.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/shortcuts/sticky.min.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/waypoints.debug.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/zepto.waypoints.js

https://cdnjs.webstatic.cn/ajax/libs/waypoints/4.0.1/zepto.waypoints.min.js