There's https://github.com/jez/tufte-pandoc-css https://github.com/jez/tufte-pandoc-css which integrates with Pandoc. I use it for my blog that features margin

There's https://github.com/jez/tufte-pandoc-css https://github.com/jez/tufte-pandoc-css which integrates with Pandoc. I use it for my blog that features margin notes from time to time: https://blog.kdheepak.com/ https://blog.kdheepak.com/ Though I had to write a lua filter to make the Pandoc margin notes work appropriately :)