.Contenedor {
    max-width: 380px;
    max-height: 400px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 30px;
}

.ImagenTop {
    text-align:center;
}

.btnLogin{
    margin-top:10px;
    margin-left:auto;
    margin-right:auto;
}

.tituloLogin{
    text-align:center;
    color:#0120aa
}
.fondoBody {
    /* background-image: url('../imagen/flujo2.jpg');*/
    background-image: url('../imagen/fondocertamen.jpg');
    background-color: cornflowerblue;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}