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

Yeah that was it. There appears to be an error in the code, you used #social instead of #head-social for the selector. Also, I'd recommend using the on-site image uploader for your skin images if you can - I find it more reliable than other image hosting sites. (you won't have to worry about the image getting deleted, moved, or having hotlinking disabled) #header > #head-social > #notifs > a { background-image: url('https://vignette.wikia.nocookie.net/pkmnshuffle/images/b/b0/Lunala.png/revision/latest?cb=20170409221427'); background-size: cover; background-position: center center; background-repeat: no-repeat; } #header > #head-social > #notifs > a > img { opacity: 0; }