.main-nav {
    background-color: #ffffff;
    top: 0;
    position: inherit;
    left: 0;
    padding: 0;
    width: 100%;
    height: auto;
    padding-bottom: 18px !important;
}
        .sticky-nav .main-nav {
            top: 0;
            border: none;
            position: fixed;
            z-index: 999;
            -webkit-box-shadow: 0 0 15px rgb(0 0 0 / 30%);
            box-shadow: 0 0 15px rgb(0 0 0 / 30%);
            padding-bottom: 19px !important;
        }