From someone else, but I forget where or who. (I think they had logged-off, hence I didn't ask them to post it themselves, or if I could attribute it).
I also found this article (whilst searching for syntaxhighlight references), where the first section is entirely about code-comments, and its advice is the complete opposite of the comment I pasted above: https://medium.com/@MrJamesFisher/your-syntax-highlighter-is-wrong-6f83add748c9
I don't know enough about other code comment styles, to be able to give useful input myself.
Do we use minification of some sort, for the CSS that is sent to the browser? That might be relevant, when deciding between large comment blocks vs inline-micro-comments.