.bg-about-us{
    background-image: url(../../image/about/contact.jpg);
    background-repeat: no-repeat;
    background-size:cover;
}
@media screen and (max-width:1024px) {
    .bg-about-us{
        background-position: center;
    }
}

@media screen and (min-width:1024px) {
    .bg-about-us::before,
    .bg-contact-us::before {
    content: "";
    background: linear-gradient(270deg, #000 10%, rgba(102, 102, 102, 0) 100%);
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
}
}