Customize the word size

[pengyinghao]

trafficstars

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

What problem does this feature solve?

在不使用less情况下，如果使用了css引入样式， 无法自定义字体大小，希望在ConfigProvider 组件中开发配置来设置 字体大小

What does the proposed API look like?

<a-config-provider font-size="12">
</a-config-provider>

:root{
--font-size:12px;
}

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days