I've been slowly, slowly making my way in creating a Child Theme for Twenty Twelve.
I've managed to add a Google banner ad by reading advice on this forum.
According to directions, I placed code in header.php just above <hgroup>. But the ad appears below my header and it's to the left. I'd like to center it and place it at the very top, above my custom header. Could someone kindly help?
This forum has been very helpful but as I'm NOT well versed in coding please explain step by step!