/* CSS Document */


#contenedor{
position: absolute;
left: 50%;
top: 50%;
width: 780px;
height: 600px;
margin-left: -390px;
margin-top: -300px;
} 

#contenedor2{
position: absolute;
left: 50%;
top: 50%;
width: 640px;
height: 480px;
margin-left: -390px;
margin-top: -300px;
}