.menu ul li.current-menu-item a:after, .menu ul li:hover a:after {
    display: inline-block;
    content: '';
    height: 0;
    width: 0;
    margin: 0 auto;
    background: url(static/images/icon1.png) no-repeat center center;
}
.menu ul li.current-menu-item a, .menu ul li:hover a {
    color: #fff;
}