Themes

Hi,

I would like to use Css in a resource web page that belongs to moodle course, but when I paste the code I can't save it. I find some help in this forum, but I don't understand where is located the file I have to modify and how I have to do it.

If somebody can help me, step by step, because I'm not an expertice, I'll be very grateful.

Thanks

Francesc