Meta: with JavaScript disabled (or if it fails to load), your <code> elements are very badly styled because of the highlighter-rouge class on them, which per monokai.css makes them `display: block` (and other related styles designed only for blocks of code, not inline code). When the JavaScript runs, the rouge highlighting is undone by https://thatgeoguy.ca/js/prettifyCode.js, which clobbers the class attribute, seemingly by accident (the comment says it’s adding, but it’s replacing instead) or incomplete modification… thereby apparently inadvertently fixing the problem!

The ideal solution is probably either removing the rouge highlighter from inline code elements, or shuffling the only-for-blocks .highlighter-rouge styles in monokai.css to a new rule div.highlighter-rouge, since they’re not suitable for inline code elements.

(I’m mentioning this here because the author is actively involved in the thread and thus there’s a reasonable chance of it being fixed.)