@media (min-width: 320px) and (max-width: 480px) { 
    .login-container {
        padding: 10px 30px 80px 30px !important;
    }
    h3#titulo-bienvenida { text-align: center; font-size: 30px;}

}

@media (min-width: 481px) and (max-width: 768px) { 
    h3#titulo-bienvenida { text-align: center;font-size: 38px;}
}

@media (min-width: 769px) and (max-width: 968px) { 
    h3#titulo-bienvenida { text-align: center;font-size: 46px;}
}
@media (min-width: 969px) and (max-width: 1024px) { 
    h3#titulo-bienvenida {font-size: 34px;}
}