#page_sellYourCar .global-backgroundSellYourCar {
    background-color: grey;
    position: relative;
    background-size: cover;
}

#page_sellYourCar  .global-backgroundSellYourCar::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
}