html, body { width:100%; height:100%; }
       body  { margin:0; padding:0; }

       table.aussen { width:100%; height:100%; border:0px solid red; }
       table.aussen td  { text-align:center; vertical-align:middle; }

       div.innen
         {
           width:30em;
           border:0px;
           margin-left:auto; margin-right:auto;
           text-align:right;
         }