应用jQuery创建流动导航菜单 _Web前端

使用jQuery创建流动导航菜单
有时，一个网站的导航菜单文字不能提供足够的信息，来表达当前菜单按钮的内容，一般的解决办法是使用提示信息ToolTip，那么本文介绍的流动导航菜单也可以解决此问题。
<html>
  <style type="text/css">
    #menuBarHolder { width: 730px; height:45px; background-color:#000; color:#fff; font-family:Arial; font-size:14px; margin-top:20px;}
    #menuBarHolder ul{ list-style-type:none; display:block;}
    .firstchild { border-left:1px solid #ccc;}
    #container { margin-top:100px;}
    #menuBar li{  float:left;  padding:15px; height:16px; width:50px; border-right:1px solid #ccc; }
    #menuBar li a{color:#fff; text-decoration:none; letter-spacing:-1px; font-weight:bold;}
    .menuHover { background-color:#999;}
    .menuInfo { cursor:hand; background-color:#000; color:#fff; width:74px; font-size:11px;height:100px; padding:3px; display:none;  position:absolute; margin-left:-15px; margin-top:-15px;
                -moz-border-radius-bottomright: 5px; -moz-border-radius-bottomleft: 5px;
                -webkit-border-bottom-left-radius: 5px; -webkit-border-bottom-right-radius: 5px;
                -khtml-border-radius-bottomright: 5px;   -khtml-border-radius-bottomleft: 5px;
                border-radius-bottomright: 5px;border-radius-bottomleft: 5px;
    }

    h1 {
      font: 50px normal Georgia, 'Times New Roman', Times, serif;
      color: #111;
      margin: 0;
      text-align: center;
      padding: 5px 0;
    }

    h1 small{
      font: 0.2em normal Verdana, Arial, Helvetica, sans-serif;
      text-transform:uppercase;
      letter-spacing: 1.4em;
      display: block;
      color: #ccc;
    }
  </style>
  <style type="text/css">
    #menuBar li a{width:50px;}
    .menuInfo { margin-left:-65px; width:80px;}
  </style>
  <script src="http://code.jquery.com/jquery-1.4.1.min.js"></script>
  <script type="text/javascript">
    $(document).ready(function()
    {
      $('#menuBar li').click(function()
      {
        var url = $(this).find('a').attr('href');
        document.location.href = url;
      });
      $('#menuBar li').hover(function()
      {
        $(this).find('.menuInfo').slideDown();
      },
      function()
      {
        $(this).find('.menuInfo').slideUp();
      });
    });
  </script>
  <center>
    <div id="container"> 
      <h1>Fluid Navigation<br />CSS &amp; jQuery <small>Tutorial by Addy Osmani</small></h1>
      <div id="menuBarHolder">
        <ul id="menuBar">
          <li class="firstchild"><a href="javascript:#">Home</a><div class="menuInfo">I am some text about the home section</div></li>
          <li><a href="javascript:#">Services</a><div class="menuInfo">I am some text about the services section</div></li>
          <li><a href="javascript:#">Clients</a><div class="menuInfo">I am some text about the clients section</div></li>
          <li><a href="javascript:#">Portfolio</a><div class="menuInfo">I am some text about the portfolio section</div></li>
          <li><a href="javascript:#">About</a><div class="menuInfo">I am some text about the about section</div></li>
          <li><a href="javascript:#">Blog</a><div class="menuInfo">I am some text about the blog section</div></li>
          <li><a href="javascript:#">Follow</a><div class="menuInfo">I am some text about the follow section</div></li>
          <li><a href="javascript:#">Contact</a><div class="menuInfo">I am some text about the contact section</div></li>
        </ul>
      </div>
    </div>
  </center>
</html>
效果图：