#contenedor{
width:700px;
height:500px;
margin:auto;  
}
#cont1{
width:400px;
height:300px;
margin:auto;
margin-top:100px;
}
#cont1-1{
width:400px;
height:270px;
margin:auto;
background-image:url(imagenes/novaera-logo.jpg);
}
#cont1-2{
width:400px;
height:30px;
margin:auto;
background-image:url(../NOVAERA WEBPAGE/imagenes/novaera-logo.jpg);
}