Aaron T. Grogg

When in Admin mode, this plug-in adds classes to the <code><body></code> tag to let 
your CSS know where you are.
For example, if you are viewing the list of all your Posts, you would get this additional class: 
 edit-list-post 
And, when you are editing a Post, something like this: 
 edit-page-post
Alternatively, for custom posts, for example “movie”, you would see either: 
 edit-list-movie 
or: 
 edit-page-movie
This allows you to write custom CSS and JS to interact with these varying edit pages within WP.
Please let me know if you have any questions/suggestions/thoughts, 
Atg

Add Custom Post Type Slugs to Admin Body Class

Add Custom Post Type Slugs to Admin &lt;body&gt; Class

PiotrPress

Clearcode

The CC-Scripts plugin gives Admin users the ability to add custom JavaScript code to every page on WordPress website in the head/footer and/or directly after the opening body html tag. 
Additionally, you can minify scripts using JSMin php library and/or displaying it selectively using dependencies. 
The best part is that you can do this from the Admin panel, perfect for those who don’t have the programming skills needed to manually add custom JavaScript code to template files.

CC-Scripts

Add custom JavaScript code to all your WordPress pages at once via the Admin panel.

Add Custom Post Type Slugs to Admin Body Class vs CC-Scripts