news.ycombinator.com##.comment:style(max-width: 70ch !important; overflow: hidden !important;)
news.ycombinator.com##.c00:style(color: #3f3f3f !important;)
news.ycombinator.com##.comhead:style(background: #e6e6df; font-weight: italic; color: #686868 !important;)
news.ycombinator.com##.hnuser:style(background: #e6e6df; font-style: italic; color: #575757 !important;)
news.ycombinator.com##html:style(filter:invert(100%) hue-rotate(180deg); background: white)
Restricts width of comments so that they're about 10 or so words wide, for optimal reading. Also changes some of the colours.Experiment with the above, and if you have any improvements please let me know!
I probably still prefer to just use Stylus for better readability/debuggability, but it's good to know.
Edit: BTW I think `font-weight: italic;` is a typo.