<!-- generated by https://eleme-issue.surge.sh DO NOT REMOVE --> ### Existing Component Yes ### Component Name Label in form item ### Description I think it will be a good choice that the [font size](https://github.com/ElemeFE/element/blob/8933a057f2aea89d678ed3c8120e2cb0bbb7a716/packages/theme-chalk/src/form.scss#L99) of the label should be customized by `$--font-size-base` variable. <!-- generated by https://eleme-issue.surge.sh DO NOT REMOVE -->