Full responsive background image. More info: http://sixrevisions.com/css/background-css-shorthand/ Further reading: http://stackoverflow.com/questions/12250727/best-way-to-hack-the-background-size-issue-on-ie And: http://css-tricks.com/perfect-full-page-background-image/
body {
background: url(photo.jpg) center center/cover no-repeat fixed padding-box border-box #ccc;
}