CSS - bildschirmfüllendes Hintergrundbild

body {

   background-image: url("uploads/media/../../fileadmin/user_upload/sandherr/hintergrund/hintergund_000_1.jpg");
   background-attachment: fixed;
   background-color: #000;
   background-size: cover;
   -webkit-background-size: cover;
   -moz-background-size: cover;
   -o-background-size: cover;
   height: 100%;
   margin: 0;
   min-height: 100%;
   padding: 0;
   position: relative;

}