小编use*_*372的帖子

我想在扩展时使粘性导航行为类似(当菜单扩展时滚动关闭)到此网站的导航(http://amandagerhardsen.com/#cloudbusting/4).

我该怎么做？

 var Boxlayout = (function () {
        var $el = $('#sticky-nav'),
            $sections = $el.children('section'),
            // work panels
            $workPanelsContainer = $('#bl-panel-work-items'),
            // close work panel trigger
            $closeWorkItem = $workPanelsContainer.find('nav > span.hidemenu'),
            transEndEventNames = {
                'WebkitTransition': 'webkitTransitionEnd',
                'MozTransition': 'transitionend',
                'OTransition': 'oTransitionEnd',
                'msTransition': 'MSTransitionEnd',
                'transition': 'transitionend'
            },
            // transition end event name
            transEndEventName = transEndEventNames[Modernizr.prefixed('transition')],
            // support css transitions
            supportTransitions = Modernizr.csstransitions;

        function init() {
            initEvents();
        }

        function initEvents() {
            $sections.each(function () {
                var $section = $(this);
                // expand the …