Question How to increase fonts size in Kunena v5 [SOLVED]

There is no custom.css file there.

Official Kunena templates create this file automatically ( see here ), when you edit these in the backend. but you use another template.

Also, in my template, the custom.css file is 0 bytes.

Yes, if you have no entered any codes then is the file empty.

Any suggestions on which file to edit?

You should not edit any files. Add the codes which you want edit in the custom.css or at the end in your Joomla template.css. You find the codes with browser tools such as Firebug (if you press F12).

Ok so I will put these codes you said in which file exactly?

Α)In the components/kunena/custom.css ?
Β)in the templates/default/template.css ?
οr C)Ηere with this method? - docs.kunena.org/en/manual/backend/templates/edit-less , by editing custom.less ?


.layout#kunena .topictitle {
font-size: 130%;
}
.layout#kunena h1, .layout#kunena h3 {
font-size: 2.0em;
}
.layout#kunena #kbbcode-message {
resize: vertical;
font-size: 1.1em;
}
.header-desc {
font-size: 1.1em;
}

Ηere with this method? - docs.kunena.org/en/manual/backend/templates/edit-less , by editing custom.less ?

Yes, optimal is the custom.less. If you have a custom.less then use for changes in your Kunena template only this file.
But it works also if you add the codes at the end of your Joomla template.css.

I have edited the less file. I prefer that than to risk editing template.css

I've put this code, I saved, I cleared cache, and I see no changes.
Look in www.gameworld.gr/forum

Can you help? Also, I tried both Edit .css and edit .less and can't find the difference between them!

Your template creates the custom.files in another folder. It's not the path as it show on your added image. You should report this your template author.

The correct path is "/components/com_kunena/template/jf_simone/jf/assets/"

The custom file in this folder is empty, therefore it cannot work.

I have put the above code here:
"/components/com_kunena/template/jf_simone/jf/assets/jf_custom.css"

The file was empty, now it has your code. Still it doesn't work even if I cleared cache and cookies.

One week has passed!

Please respond!

You mean there is no difference? As you can see, is the current font size (on image left) bigger than on the right side (without codes). If you want more then change the size specification.