background: [background-color || background-image || background-repeat || background-attachment || background-position] | inherit]
background-image: url(/img/4x3.png); background-repeat: no-repeat; background-position: center center; background-attachment: fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;
background: url(images/bg.jpg) no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;