Were sould I put my custom css class
Hello,
Surely this is a very beginner's query, but I would like to ask if someone can explain me where I should physically put a custom css class, for a div or a box.
I have seen that in the configuration of the div you can write the name of a class, for example ".mycss", but .... I have to put this css class? inside some system file? or soukd I create a new file with my css class? .. and if so, in what folder should I put this file.
I do not know if I have been able to explain my doubt.
Thank you very much
Santi Peralta