Fixing the misaligned inline nav using "inline-block" also made it
obvious that I can simplify compound selectors. The max number of
compound selectors has dropped from 4 to 2. Update stylelint configs to
reflect this.
Also fix containment to reflect a prior change (webmentions are a
section, not a footer.)
It's mobile-friendly as-is. I made sure that tap-targets were even
bigger and more spaced-apart, just to be safe.
Hide unnecessary nav-links in print mode.
- Better print stylesheet, now with a file dedicated just for print
style improvements.
- Hide extra stuff in print.
- Bring back navbar for print because it also tells users the current
section and the site name.
- Dark theme: make superscripts bold instead of using a higher-contrast
color.
