[css] vertical margin

[mvorisek]

Bug Report

I am not sure about the correct vertical margin nor how the fix will affect other styles.

Maybe more inline components than buttons need to be fixed. In theory, any inline compoennt can wrap, so when the background is set, the top or bottom margin must be > 0.

Steps to reproduce

https://jsfiddle.net/t6p2bn8c/1/

Expected result

Actual result

Version

2.9.3

[ko2in]

There is already spaced buttons group.

[lubber-de]

What @ko2in said.. We implemented wrapping and spaced to handle at least button groups via #2217
Unfortunately you cannot detect if inline elements are actually wrapped via pure CSS.