Difficulting in styling admin

[stephen-calm]

"inline-group" for the first group does not have class for targeting it.
Where as the second group with "inline-group" also has "nested-inline" making it easy to style.

Would it be possible to add a class to the first group or higher up the html to allow us to style our admin to match our custom design for normal Inline forms.

Thank you,
Stephen Brown