How do I create a child theme for Coursepress Pro theme?

I searched the forums for an answer to this but did not see one anywhere. How do I create a child theme for the Coursepress Pro theme? I tried creating a directory in themes and in the style.css linking to the coursepress theme location but that did not work.

I'd like to update the css to remove the page title from showing, but I don't want to have to update it everytime the theme is updated. Thanks,