基于HTML5折叠卡片式下拉菜单代码。这是一款基于jQuery+CSS3+HTML5实现的下拉列表框特效代码。效果图如下：

在线预览    源码下载

实现的代码。

hmtl代码：

  <div class="container">
        <div class="card-drop">
            <a class='toggle' href="#">
                <i class='fa fa-suitcase'></i>
                <span class='label-active'>爱编程</span>
            </a>
            <ul>
                <li class='active'>
                    <a data-label="Everyting" href="#"><i class='fa fa-suitcase'></i> 爱编程</a>
                </li>
                <li>
                    <a data-label="Design" href="#"><i class='fa fa-magic'></i> jQuery特效</a>
                </li>
                <li>
                    <a data-label="UI-UX" href="#"><i class='fa fa-bolt'></i> CSS3特效</a>
                </li>
                <li>
                    <a data-label="Print" href="#"><i class='fa fa-tint'></i> HTML5特效</a>
                </li>
                <li>
                    <a data-label="Photography" href="#"><i class='fa fa-camera-retro'></i> 音效下载</a>
                </li>
                <li>
                    <a data-label="Photography" href="#"><i class='fa fa-camera-retro'></i> flash动画</a>
                </li>
            </ul>
        </div>
    </div>

js代码：

 (function ($) {
            var cards = $('.card-drop'), toggler = cards.find('.toggle'), links = cards.find('ul>li>a'), li = links.parent('li'), count = links.length, width = 100;
            li.each(function (i) {
                $(this).css('z-index', count - i);
            });
            function setClosed() {
                li.each(function (index) {
                    $(this).css('top', index * 4).css('width', width - index * 0.5 + '%').css('margin-left', index * 0.25 + '%');
                });
                li.addClass('closed');
                toggler.removeClass('active');
            }
            setClosed();
            toggler.on('mousedown', function () {
                var $this = $(this);
                if ($this.is('.active')) {
                    setClosed();
                } else {
                    $this.addClass('active');
                    li.removeClass('closed');
                    li.each(function (index) {
                        $(this).css('top', 60 * (index + 1)).css('width', '100%').css('margin-left', '0px');
                    });
                }
            });
            links.on('click', function (e) {
                var $this = $(this), label = $this.data('label');
                icon = $this.children('i').attr('class');
                li.removeClass('active');
                if ($this.parent('li').is('active')) {
                    $this.parent('li').removeClass('active');
                } else {
                    $this.parent('li').addClass('active');
                }
                toggler.children('span').text(label);
                toggler.children('i').removeClass().addClass(icon);
                setClosed();
                e.preventDefault;
            });
        }(jQuery));

via：http://www.w2bc.com/article/html5-fade-out-in-nav

在线预览    源码下载