h1
 {position:absolute; left:1px; top:1px; width:650px; height:200; z-index:1; overflow: hidden; visibility: hidden
}


 iframe#contenido
  { 
    width:   100%; 
	height:  100%; 
	padding: 0px; 
	margin:  0px; 
	border:  0px; 
  }