I've watched the tutorial through lynda.com, ready numerous postings, followed them all to the t, or so I thought because it's not working!
Here's what I have in my style.css file in my child folder:
Theme Name: Child of Twenty Twelve
Description: SJ's tweaks of Twenty Twelve
Author: SJ Hylton LeHoven
I know I did the child folder right because I was able to move the header to above the menu.
I've changed the text above a zillion times trying all kinds of recommendations I read, but so far nothing's worked.
Please thank you so much for any tips of what I've done wrong. This is new to me, and I'm determined to learn it. I'm actually enjoying the process and just consider this a small bump in the road.