.uc-bg{
    width: 100% !important;
    height: 100vh !important;
    overflow: hidden;
    position: fixed !important;
    background-image: url(https://raarchiv.ru/nikeplast/img/bg_1920.jpg);
    background-size: cover;
    top: 0 !important;
    right: 0 !important;
    background-position: top center;
    z-index: 1 !important;
}
.uc-accia, .uc-tovar {
    z-index: 999 !important;
    position: relative !important;
}