[LON-CAPA-users] HTML version?

[lon-capa-users@mail.lon-capa.org]

I am playing around with trying to write css files.

1) Is there a discussion of this somewhere, how to implement this in
LonCapa?

2) It seems there are variations depending on whether one is using HTML
version 3.2 or 4.x. Which one should I think I am using? How can I tell? Is
this a function of the browser I use, or is the server involved in parsing
the stuff?

Thanks,
clueless brew