How to show a background image outside of ui-page, in side columns
I try to reuse my jQuery Mobile Website for smartphones now for big screens. I could shrink the main Content column/space, so I think its easier to read. But on both sides there is now an empty space, where I would like to show a backgroundimage.
I tried to use the body tag, ui-page,and body.ui-mobile-viewport
I could get a background for the middle column, the content space, what is not what I want, but no background for the two side columns.
Any idea how to show a background image in the side columns?