Images with transparent backgrounds are filled in due to link background styling
ResolvedWhile I was uploading some files on the Keynotathlon Wiki, I noticed that when I upload files with transparent backgrounds, the background gets filled in with a light rainbow background due to my CSS (at https://keynotathlon.wikioasis.org/wiki/MediaWiki:Gadget-rainbow-style.css) adding a light rainbow box around all links ("a" class) on thunbnails and a smaller box on file pages. Is there a way to exclude images from the a (link) class?
Example page: https://keynotathlon.wikioasis.org/wiki/File:Kyoton-9_mascot.png
Example page: https://keynotathlon.wikioasis.org/wiki/File:Kyoton-9_mascot.png
