.vertical-centered {
    display: flex;
    align-items: center;
}
.fondo-oscuro {
    background-color: rgba(0,0,0,.6);
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    margin-top: 0px;
    margin-bottom: 0px;
}

.fondo-transparente {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    margin-top: 0px;
    margin-bottom: 0px;
}
.loader {
    width: 6rem;
    height: 6rem;
}