When converting a current Markdown file to HTML (for temporary preview and checking) with this command:
pandoc \
-t html \
-f markdown \
-o index.html \
-c http://imagemagick.org/css/bootstrap.min.css \
-c http://imagemagick.org/css/magick.css \
index.md
the resulting HTML does display definition lists (<dl> ... </dl>) not in a nice way. (Converting without any CSS the results for definition lists look better.)
It would be nice if we could have a (maybe local only) patch for magick.css which fixes this.
Example of Markdown with a definition list: morphology/index.md (after my next git-push), search for Smooth:i.s.