[Rd] A new CSS file for the offline documentation

[Nicolas Drouin]

I have made a new CSS file for the R offline documentation.

It's far easier to read, it's lightweight, looks good, cross-browsers,
responsive, and without any bug.

Now my problem is where should I post it so it can be used in the next
version ? And it's not an easy problem...

Any ideas?

The file is here : www.nicolasdrouin.com/R.css

There is no need to change the HTML part just to switch the old CSS files
with this new one.