Board Thread:Support Requests - Designing Your Wiki/@comment-24530269-20180216190248/@comment-27345308-20180217175551

is a selector for the whole contents of a page only if the body element had a class, which it doesn't. If you wanted to select all images inside of an article, though, you can change that selector to. Or you can use something like what Andrewds1021 suggested above if you don't want them to apply to all images in an article.