I have changed the Header to a Custom Header which is 50 x 50; it is indicated that files of this size will be used exactly as is, and this is the case for the desktop version it seems. It is tiny, but that is ok. However, I now find that when I access the blog using the mobile interface, that same file is used as the blog header and it is enormous. I don't know what is happening here. How do I get an image that will look ok for both mobile and desktop interfaces in that position ?
The blog I need help with is ncharlessmall.wordpress.com.