.headerNavMenu {
    padding: .3125rem;
}

.headerNavMenu .headerNavMenuIndexImage {
    width: 5rem;
    height: 2.375rem;
    background-image: url(https://rsgt.com.hk/img/rs2024logo-white.png);
    background-repeat: no-repeat;
    background-size: contain;
}

.headerNavMenu .headerNavMenuContent {
    font-size: 1rem;
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    overflow-x: scroll;
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem::-webkit-scrollbar {
    display: none;
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem .contentItem {
    position: relative;
    margin: 0 .625rem;
    padding: 0;
    white-space: nowrap;
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem .contentItem>a {
    color: #fff;
    text-decoration: none;
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem .contentItem.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: .125rem;
    background: #fff;
    /* z-index: 2; */
}

.headerNavMenu .headerNavMenuContent .headerNavMenuContentItem .contentItem .contentItemSub {
    display: none;
    position: absolute;
    top: 100%;
    left: -50%;
    padding: 0 1.25rem;
    width: -moz-max-content;
    width: max-content;
    background-color: #fff;
    box-shadow: 0 .3125rem .625rem #ccc;
    border-radius: .3125rem;
    z-index: 999;
}