I would be interested in finding a way to include this information when I edit css/sass in Emacs. Is there something I could use or would I need to write a new

I would be interested in finding a way to include this information when I edit css/sass in Emacs. Is there something I could use or would I need to write a new minor mode myself? (I have been using Emacs for some time now but rarely write any elisp myself.)