前端骨架屏的资料

https://github.com/Jocs/jocs.github.io/issues/22

https://juejin.im/post/5bc5396ee51d456f490984eb

https://segmentfault.com/a/1190000014832185

https://github.com/ElemeFE/page-skeleton-webpack-plugin/blob/master/docs/i18n/zh_cn.md

https://xiaoiver.github.io/coding/2017/07/30/%E4%B8%BAvue%E9%A1%B9%E7%9B%AE%E6%B7%BB%E5%8A%A0%E9%AA%A8%E6%9E%B6%E5%B1%8F.html

https://huangxuan.me/2017/07/12/upgrading-eleme-to-pwa/