Single post in Site Skins: How-To, and Helpful CSS

Now my turn to ask a question.. I've looked through for other people asking this same one and finding fixes If I try and use the code to change the notification absol head to a Shuffle Lunala to match my spacey skin, it doesn't work. I've cleared my cache (or at least I think I did..Ctrl+refresh on Chromebook) But it's still absol