a.menu-icon-4012,
    ul.links li.menu-icon-4012 a,
    ul.menu li.menu-icon-4012 a {
        background-image: url(/sites/default/files/menu_icons/facebook.png);
        padding-left:36px;
        background-repeat: no-repeat;
        background-position: left center;
    }
    a.menu-icon-4013,
    ul.links li.menu-icon-4013 a,
    ul.menu li.menu-icon-4013 a {
        background-image: url(/sites/default/files/menu_icons/twitter.png);
        padding-left:36px;
        background-repeat: no-repeat;
        background-position: left center;
    }
    a.menu-icon-4014,
    ul.links li.menu-icon-4014 a,
    ul.menu li.menu-icon-4014 a {
        background-image: url(/sites/default/files/menu_icons/instagram.png);
        padding-left:36px;
        background-repeat: no-repeat;
        background-position: left center;
    }
    a.menu-icon-4015,
    ul.links li.menu-icon-4015 a,
    ul.menu li.menu-icon-4015 a {
        background-image: url(/sites/default/files/menu_icons/youtube.png);
        padding-left:36px;
        background-repeat: no-repeat;
        background-position: left center;
    }