JQuery写的个性导航菜单

浏览者是否对网站感兴趣，前20秒的第一印象至关重要，所以我们的设计要符合大众的期望。下面我们将设计一个个性的导航菜单。

（一）：XHTML：

    <div id="sidebar">
      <ul>
        <li><a href="index.html" class="normalMenu">Home</a></li>
        <li><a href="services.html" class="normalMenu">Services</a></li>
        <li><a href="faq.html" class="normalMenu">FAQ</a></li>
        <li><a href="testimonials.html" class="selectedMenu">Testimonials</a></li>
        <li><a href="about.html" class="normalMenu">About Alpacas</a></li>
        <li><a href="contact.html" class="normalMenu">Contact Us</a></li>
     </ul>
   </div>

(二)：JQuery

$(document).ready(function(){

    $('#navigationMenu li .normalMenu').each(function(){
        // create a duplicate hyperlink and position it above the current one
        $(this).before($(this).clone().removeClass().addClass('hoverMenu'));

    });
    
    $('#navigationMenu li').hover(function(){
        // we assign an action on mouse over
        $(this).find('.hoverMenu').stop().animate({marginTop:'0px'},200);
        // the animate method provides countless possibilities
    },
    
    function(){
        // and an action on mouse out
        $(this).find('.hoverMenu').stop().animate({marginTop:'-25px'},200);

    });
    
});

(三）CSS

/* Page styles */

body,h1,h2,h3,p,td,quote,small,form,input,ul,li,ol,label{
    margin:0px;
    padding:0px;
}

body{
    margin-top:20px;
    font-family:Arial, Helvetica, sans-serif;
    color:#51555C;
    height:100%;
    font-size:12px;
}

/* Navigation menu styles */

ul{
    height:25px;
    font-family:Arial, Helvetica, sans-serif;
    font-size:12px;
}

ul li{
    border:1px solid #444444;
    display:inline-block;
    float:left;
    height:25px;
    list-style-type:none;
    overflow:hidden;
}

ul li a, ul li a:hover, 
ul li a:visited{
    text-decoration:none;
}

.normalMenu, .normalMenu:visited,
.hoverMenu, .hoverMenu:visited,
.selectedMenu,.selectedMenu:visited {
    outline:none;
    padding:5px 10px;
    display:block;
}

.hoverMenu,.hoverMenu:visited,
.selectedMenu,.selectedMenu:visited {
    margin-top:-25px;
    background:url(img/grey_bg.gif) repeat-x #eeeeee;
    color:#444444;
}

.selectedMenu,.selectedMenu:visited {
    margin:0;
}

.normalMenu, .normalMenu:visited{
    color:white;
    background:url(img/dark_bg.gif) repeat-x #444444;
}

(四） 效果图