menu bar mouse move

// 메뉴 색상바
var $marker = $('<div class="marker"></div>').appendTo('.menu'); 
var $navitem = $('.menu > .menu-item'); 
var $current = $('.menu-item.current-menu-item');
if ($current.parents('.sub-menu').length) { // 2차 메뉴 
    $current = $current.closest('.menu-item-has-children');
}

function indicator($el) {
    $marker.css({
        left: $el.position().left + 20 + "px", 
        width: $el.outerWidth() - 40 + "px",
        opacity: 1
    });
}
if ($current.length) {
    indicator($current);
}
$navitem.mouseenter(function() {
    indicator($(this));
});
$(".menu").mouseleave(function() {
    if ($current.length) {
        indicator($current);
    } else {
        $marker.css({ opacity: 0, width: "0px" });
    }
});