使用webpack构建的时候提示，css文件依赖问题。

[李勋冠]

WARNING in .//art-dialog/src/dialog.js
Critical dependencies:
23:17-24 require function is used in a way in which dependencies cannot be statically extracted
23:25-32 require function is used in a way in which dependencies cannot be statically extracted
@ .//art-dialog/src/dialog.js 23:17-24 23:25-32

我去掉了src/dialog.js里面的css加载，改为手动加载，暂时解决。