* {margin:0px; padding:0px;}
body { background:#fff;}
#contenido {position:absolute; top:0px; left:0px; width:100%; height:800px/*height:100%800px*/;}


/**/
/*body { background: url(../img/fdo-day.gif) center top}*/
/*html {height: 100%; overflow: hidden;}*/
/*#contenido { margin-left: auto; margin-right: auto;text-align: center; height:100%;}*/