I want to put a Background image centered in the body (backgroundPosition). And then I want all the content(text, tables....) I will add to the page to be aligned with the background, for example, If I zoom the Page, the proportions Background-Content should be respected. I tried almost everything and I don't know if Its possible, I know if I use position top-left for background position and then content in float:left proportions will be respected, but If I want background centered?