@media(max-width: 991px) {
    .header-menu {
        position: fixed;
        top: 0;
        right: -100%;
        background-color: #2a313d;
        width: 100%;
        height: 100%;
        overflow-y: scroll;
        transition: right .4s ease-in-out;
    }
    .header-menu.show {
        right: 0;
    }
    .header-menu-ul {
        position: absolute;
        top: 0;
        width: 100%;
        display: flex;
        gap: 1px;
        flex-wrap: wrap;
        justify-content: start;
    }
    .header-menu-ul > li {
        width: 100%;
        padding: 10px 12px;
        border-bottom: solid 1px #016e8d;
    }
    .cont-submenu-header {
        position: relative;
        top: 0;
        right: 0;
        transform: translate(0,0);
        width: 100%;
        background-color: transparent;
        border-radius: 0;
        visibility: visible;
        opacity: 2;
        display: none;
    }
    .cont-submenu-header.show {
        display: block;
    }
    .cont-submenu-header > ul > li {
        border-bottom: none;
    }
    .cont-submenu-header > ul > li > a {
        color: #fff;
    }
}