.custom-menu {
    display: none;
    z-index: 9999;
    position: absolute;
    overflow: hidden;
    border: 1px solid #CCC;
    /*white-space: nowrap;*/
    /*font-family: sans-serif;*/
    background: #FFF;
    color: #333;
    border-radius: 5px;
    padding-left: 0px;
}

    /* Each of the items in the list */
    .custom-menu li {
        padding: 8px 12px;
        cursor: pointer;
        list-style-type: none;
        transition: all .3s ease;
    }

        .custom-menu li:hover {
            background-color: #1ab394;
            color: white;
        }