pseudo-class content's value need use Unicode，otherwise，sometime will load messy code。需要用Unicode作为content的值,否则偶尔会出现乱码

[fangbing0565]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

1.4.10

Environment

chrome 79，vue 2.0

Reproduction link

https://github.com/vueComponent/ant-design-vue/blob/master/components/date-picker/style/Calendar.less

Steps to reproduce

open DatePicker， icon

What is expected?

一般情况下，需要用Unicode来作为 content 的值，保证不会乱码

What is actually happening?

icon messy code 图标乱码

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[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.