[css] Background position, margin-top?

I currently have my background set to top right as:

#thedivstatus {
    background-image: url("imagestatus.gif");
    background-position: right top;
    background-repeat: no-repeat;
}

BUT! I need to add a margin-top:50px; from where its rendering via above. Could anyone give me a suggestion?

Thanks

 background-image: url(/images/poster.png);
 background-position: center;
 background-position-y: 50px;
 background-repeat: no-repeat;

#div-name

{

  background-image: url('../images/background-art-main.jpg');
  background-position: top right 50px;
  background-repeat: no-repeat;
}