### Steps to reproduce

1. Open a Milestone date picker (single) and a normal work package date picker (range) Begin of the insertion


End of the insertion Begin of the deletion

End of the deletion ### What is the buggy behavior?

* The red bits are extra spacing that should not be there Begin of the insertion

End of the insertion Begin of the deletion
End of the deletion * The purple bits represent 1rem spacing that should be there Begin of the insertion


End of the insertion Begin of the deletion

End of the deletion <img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/55221/content"><img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/55220/content">

### What is the expected behavior?

* 1 rem Begin of the insertionhorizontalEnd of the insertion spacing between Begin of the insertionelements

* Out of scope: Fix vertical spacing (see comment#6)


End of the insertion Begin of the deletion elements 

End of the deletion ### Environment information

**OpenProject 13.0.0 / Edge**
**3bb0011dd7 (2023-04-19 06:36:16 +0000)**

**Browser**

* [ ] Chrome
* [x] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)

**Language**

EN