.header {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 20000 !important;
    background: transparent !important;
    transition: 0.3s !important;
}
.header:hover {
    background: #fff !important;
    transition: 0.3s !important;
}
/* 768-992 */
@media screen and (max-width: 992px) {
    .header {
        background: #fff !important;
    }
}

.header.admin {
    position: relative !important;
    z-index: 0;
}