#banner{

    background-image:linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../../Imagenes/BannerHomePage/medisel_historia1.jpg');
    
}

#bandaNosotros {
    text-align:center;
    padding-top:20px;
    padding-bottom:20px;
}

#bandaNosotros .contenedor {
    text-align:left;
}