* {margin:0px; padding:0px;}
body {height: 100%;}
html {height: 100%; background-color:#B00E1B;/*overflow: hidden;*/}
#contenido { height:680px; width:950px; position:absolute; top:50%; left:50%; margin-top:-340px; margin-left:-475px; border:#F6CC28 solid 1px;}