*{border:0;margin:0;padding:0;outline:0}
html,body{width:100%;height:100%;overflow:hidden}

#holder{position:absolute;width:200%;height:200%;top:-50%;left:-50%}
#holder[id]{display:table}
#holder div{position:absolute;left:0;top:50%}
#holder[id] div{display:table-cell;vertical-align:middle;position:static}
#holder img{position:relative;top:-50%;margin:0 auto;display:block;width:100%}
*:first-child+html #holder div{position:absolute}/*force IE 7 back to position:absoulte*/

#body{position:absolute;top:0;left:0;z-index:2;width:100%;height:100%;overflow:auto}