Does anybody have a solution to this:
I have created a child theme for twentytwelve which works. On the other hand my child theme for woothemes canvas doesn't. It can be activated, appears to see the css in style.css (actually works for some custom classes which I have used in a content page), but appears to override the css with the css for the parent theme (the child theme css appears in firebug, but is crossed out).
Any solutions or pointers would be much appreciated.