I have a child theme to twentytwelve. In uploading the recommended width header, a crop is suggested narrower than my uploaded 960x200 header image, at around the 80% width mark [from left]. Why?
I'm assuming this may be related to resolution differences. My computer sees the whole width of the image while a friend of mine's computer sees only about 80%.
So I have a few questions:
1) Is there a more ideal width to use in twentytwelve header spot than 960?,
2) If I make the header image narrower, does the whole page width become narrower?
3) Would folks here just recommend that all vital communication pieces of a 960x___ header be shown within the left-most 80% of that area and leave the header image's width as-is?
Thanks so much!