一款由css3和jquery实现的卡面折叠式菜单

 <div id="wrapper">
        <h1>
            <i class="icon-sort-by-attributes"></i>CSS3 <span>Card Deck Drop Down</span></h1>
        <div class="card-drop">
            <a class="toggle active" href="#"><i class="icon-camera-retro"></i><span class="label-active">
                sridhar</span> </a>
            <ul>
                <li class="" style="z-index: 6; top: 60px; width: 70%; margin-left: 40px;"><a data-label="Everyting"
                    href="#"><i class="icon-suitcase"></i>Everyting</a> </li>
                <li class="" style="z-index: 5; top: 120px; width: 70%; margin-left: 40px;"><a data-label="Design"
                    href="#"><i class="icon-magic"></i>Design</a> </li>
                <li class="" style="z-index: 4; top: 180px; width: 70%; margin-left: 40px;"><a data-label="UI-UX"
                    href="#"><i class="icon-bolt"></i>UI-UX</a> </li>
                <li class="" style="z-index: 3; top: 240px; width: 70%; margin-left: 40px;"><a data-label="Print"
                    href="#"><i class="icon-tint"></i>Print</a> </li>
                <li class="" style="z-index: 2; top: 300px; width: 70%; margin-left: 40px;"><a data-label="Photography"
                    href="#"><i class="icon-camera-retro"></i>Phtography</a> </li>
                <li class="active" style="z-index: 1; top: 360px; width: 70%; margin-left: 40px;"><a
                    data-label="sridhar" href="#"><i class="icon-camera-retro"></i>sridhar</a> </li>
            </ul>
        </div>
        <br />  <br />  <br />
             <script src="/scripts/2bc/_gg_970_90.js" type="text/javascript"></script>
    </div>

   html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video
        {
            margin: 0;
            padding: 0;
            border: 0;
            font: inherit;
            font-size: 100%;
            vertical-align: baseline;
        }
        
        
        
        ol, ul
        {
            list-style: none;
        }
        body
        {
            background-color: #F2EFE9;
            overflow: visible;
            padding-top: 40px;
            font-family: helvetica, arial, sans-serif;
            font-size: 1em;
        }
        
        *
        {
            -webkit-box-sizing: border-box;
            -moz-box-sizing: border-box;
            box-sizing: border-box;
        }
        
        #wrapper
        {
            width: 680px;
            margin: 0 auto;
            height: 1000px;
        }
        
        h1
        {
            font-size: 2.5em;
            text-align: center;
            font-weight: bold;
            margin-bottom: 10px;
            line-height: 1.4em;
            color: #4e6a6a;
            text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
            font-family: helvetica, arial, sans-serif;
        }
        h1 span
        {
            font-weight: lighter;
        }
        
        .card-drop
        {
            max-width: 300px;
            position: relative;
            margin: 0 auto;
            -webkit-perspective: 800px;
            -moz-perspective: 800px;
            -ms-perspective: 800px;
            -o-perspective: 800px;
            perspective: 800px;
        }
        .card-drop a
        {
            display: block;
            width: 100%;
            background-color: salmon;
            padding: 20px 0 20px 20px;
            height: 60px;
            text-decoration: none;
            color: #1e2929;
            background-color: #5f8181;
            border-bottom: 1px solid #4e6a6a;
            -webkit-transition: all 0.3s ease-out;
            -moz-transition: all 0.3s ease-out;
            -o-transition: all 0.3s ease-out;
            transition: all 0.3s ease-out;
        }
        .card-drop a i
        {
            display: inline-block;
            width: 20px;
        }
        .card-drop > a.toggle
        {
            position: relative;
            z-index: 300;
            -webkit-backface-visibility: hidden;
            -moz-backface-visibility: hidden;
            -ms-backface-visibility: hidden;
            -o-backface-visibility: hidden;
            backface-visibility: hidden;
            -webkit-transform-style: preserve-3d;
            -moz-transform-style: preserve-3d;
            -ms-transform-style: preserve-3d;
            -o-transform-style: preserve-3d;
            transform-style: preserve-3d;
            -webkit-transform-origin: 50% 0%;
            -moz-transform-origin: 50% 0%;
            -ms-transform-origin: 50% 0%;
            -o-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
            -webkit-transition: 0.1s linear;
            -moz-transition: 0.1s linear;
            -o-transition: 0.1s linear;
            transition: 0.1s linear;
            background-color: #729797;
        }
        .card-drop > a.toggle:active
        {
            -webkit-transform: rotateX(60deg);
            -moz-transform: rotateX(60deg);
            -ms-transform: rotateX(60deg);
            -o-transform: rotateX(60deg);
            transform: rotateX(60deg);
        }
        .card-drop > a.toggle.active:before
        {
            content: "\f0d8";
        }
        .card-drop > a.toggle:before
        {
            border-left: 1px solid #4E6A6A;
            color: #344646;
            content: "?";
            display: block;
            font-family: ‘FontAwesome‘;
            font-size: 1.3em;
            height: 59px;
            line-height: 60px;
            position: absolute;
            right: 0;
            text-align: center;
            text-shadow: 0 1px 0 rgba(255, 255, 255, 0.3);
            top: 0;
            width: 60px;
        }
        .card-drop ul
        {
            position: absolute;
            height: 100%;
            top: 0;
            display: block;
            width: 100%;
        }
        .card-drop ul li
        {
            margin: 0 auto;
            -webkit-transition: all, 0.3s ease-out;
            -moz-transition: all, 0.3s ease-out;
            -o-transition: all, 0.3s ease-out;
            transition: all, 0.3s ease-out;
            position: absolute;
            top: 0;
            z-index: 0;
            width: 100%;
        }
        .card-drop ul li a:hover
        {
            background-color: #6a9090;
            color: #dce5e5;
        }
        .card-drop ul li.active a
        {
            color: #95b1b1;
            background-color: #547272;
            cursor: default;
        }
        .card-drop ul li.closed a:hover
        {
            cursor: default;
            background-color: #5f8181;
        }

  $(document).ready(function () {
            (function ($) {
                //Author: Brady Sammons
                //URL: www.bradysammons.com
                /* -------------------------------------------------------- */
                /*    //set Global variables
                /* -------------------------------------------------------- */
                var cards = $(".card-drop"),
        toggler = cards.find(".toggle"),
        links = cards.find("ul>li>a"),
        li = links.parent(‘li‘),
        count = links.length,
        width = links.outerWidth();

                console.info(count);

                console.info(width);
                console.info(toggler);
                console.info(links);
                console.info(li);
                console.info(cards);

                //set z-Index of drop Items
                links.parent("li").each(function (i) {
                    $(this).css("z-index", count - i); //invert the index values
                });

                //set top margins & widths of li elements
                function setClosed() {
                    li.each(function (index) {
                        $(this).css("top", index * 2)

                         .css("width", width - index * 20)
                         .css("margin-left", (index * 20) / 2)
                                                .css("margin-left", (index * 20) / 2);
                    });

                    li.addClass(‘closed‘);
                    toggler.removeClass("active");
                }
                setClosed();

                /* -------------------------------------------------------- */
                /*    Toggler Click handler
                /* -------------------------------------------------------- */
                toggler.on("mousedown", function () {
                    var $this = $(this); //cache $(this)
                    //if the menu is active:
                    console.info(this);
                    if ($this.is(".active")) {
                        setClosed();
                    } else {
                        //if the menu is un-active:
                        $this.addClass("active");
                        li.removeClass(‘closed‘);
                        //set top margins
                        li.each(function (index) {
                            $(this).css("top", 60 * (index + 1))
                         .css("width", "70%")
                         .css("margin-left", "40px");
                        });
                    }
                });

                /* -------------------------------------------------------- */
                /*    Links Click handler
                /* -------------------------------------------------------- */
                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);
        }); //@ sourceURL=pen.js