responsive theme creating child

Hi there Piter,
Making a child theme is basically the same for all themes and is mostly a universal process when working with wordpress. The wordpress codex does a really good job of explaining it. You can go here to learn how to make a child theme

https://codex.wordpress.org/Child_Themes

Cyber chimp also provides an already set up child theme ready for download
you can find it here.

http://cyberchimps.com/guide/child-theme-example/

Hope this helps. If you have any more word press questions please feel free to ask.