.op3-element[data-op3-element-type="listmenu"] {

    nav {
        min-height: 16px;

        ul, li {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        > ul > li:first-child {
            margin-top: 0 !important;
        }

        ul ul {
            margin-left: 1em;
        }

        .op3-list-menu-title {
            display: block;
        }
    }

}