.contenedor_especialP{
    margin: 0;
    padding: 20px;
    text-align: left;
}

.foto_apertura{   
  background-image: url(/gnfactory/LNC/GNF/2016/11/01/0010/img/apertura2.jpg);
  background-position: left;
  background-size: cover;    
  max-width: 2100px;
  height: 500px;
}
.foto_apertura h6{
    font-family: 'Roboto Slab', serif;
    text-align: left;
    font-size: 40px;
    max-width: 420px;
    line-height: 43px;
    color: #264b68;
    padding: 20px 0 0 20px;   
}
@media only screen and (max-width: 500px) {
            .foto_apertura{   
              background-image: url(/gnfactory/LNC/GNF/2016/11/01/0010/img/apertura2b.jpg);
              background-position: left;
              background-size: cover;   
              background-repeat: no-repeat;    
              width: 100%;
              height: 250px;     
            }
            .foto_apertura h6{
                font-family: 'Roboto Slab', serif;
                text-align: left;
                font-size: 20px;
                max-width: 190px;
                line-height: 22px;
                color: #264b68;
                padding: 20px 0 0 20px; 
            }

        }