* {margin:0;padding:0}
/* mac hide \*/
html,body{height:100%;width:100%;}
/* end hide */
body { 
background-color: #28231d;
text-align:center;
min-height:468px;/* for good browsers*/
min-width:552px;/* for good browsers*/
}
#xouter{
height:100%;
width:100%;
display:table;
vertical-align:middle;
}
#xcontainer {
text-align: center;
position:relative;
vertical-align:middle;
display:table-cell;
height: 468px;
} 
#xinner {
width: 552px;
height: 468px;
text-align: center;
margin-left:auto;
margin-right:auto;
}