Web typography – The elements of Typography applied to the Web
I found this website on Web Typography to be informative. You might want to have a look at it.
The website and work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. It was created and is maintained by Richard Rutter.
“Give full typographical attention even to incidental details.
Now start with Rhythm & Proportion or dip into the Table of Contents and enjoy pushing a few boundaries to create websites of real typographical worth.” – Quoted from Richard Rutter on his website.