Differentiate footnotes between bibliographic info and real comments

Sangjoon Lee

When I'm reading a book on Logos, I always hover my mouse on the footnote number, because I don't want to miss anything important. But most of the times it's just bibliographic info (or "ibid.", etc.), which is just junk info for me.

I want those footnotes to be marked different that have some real useful comments by the author, so that I won't waste my time hovering my mouse over mere bibliographic info.

Thanks.