#contenido {
background-image:url(../images/propiedad-background.jpg); 
background-repeat:no-repeat; 
width: 950px; 
height: 956px; 
z-index:0; 
position:relative;
}

#detalles_ficha{
position:absolute; 
left:19px; 
top:136px; 
z-index: 1; 
background-image:url(../images/propiedad_detalles.jpg); 
width: 459px; 
height: 38px;
}
#details{
position:absolute; left:348px; top:185px; width: 322px;" align="left
}
#codigo{
position:absolute; left:374px; top:149px; z-index: 2; height: 20px; width: 96px;
}