Concept and line-height

Hello, I'm trying to increase the line height in the paragraphs of the pages in Concept Theme, but I did not succeed. How can I do?

Thanks

Hi!
Could you give us the URL of your website, please.

That's the website

http://www.fiuggiguitarfestival.com/

I need also to change font size in paragraphs to small compared to h3 title

Thanks

There are several css files: style.css located in the directory of the theme and the others inside /css folder. Inspecting the page you will be able to find the line and the file you have to edit. We don't provide such kind of services.

ok