分享一个导航条哈(⊙o⊙)…

<!--[if lt IE 9]>

        <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>

    <![endif]-->    

    <style>

        

        body{

            background: #333 ;

            width: 610px;

            margin: 0 auto;

            font-family: Arial, Helvetica;

            font-size: small;

        }

        

        nav  {

            display: block;

            width: 100%;

            overflow: hidden;

        }

        

        nav ul {

            margin: 80px 0 20px 0;

            padding: .7em;

            float: left;

            list-style: none;

            background: #444;

            background: rgba(0,0,0,.2);

            -moz-border-radius: .5em;

            -webkit-border-radius: .5em;

            border-radius: .5em;    

            -moz-box-shadow: 0 1px 0 rgba(255,255,255,.2), 0 2px 1px rgba(0,0,0,.8) inset;

            -webkit-box-shadow: 0 1px 0 rgba(255,255,255,.2), 0 2px 1px rgba(0,0,0,.8) inset;

            box-shadow: 0 1px 0 rgba(255,255,255,.2), 0 2px 1px rgba(0,0,0,.8) inset; 

        }

        

        nav li {

            float:left;

        }

        

        nav a {

            float:left;

            padding: .8em 1.5em;

            text-decoration: none;

            color: #555;

            text-shadow: 0 1px 0 rgba(255,255,255,.5);

            font: bold 1.1em/1 ‘trebuchet MS‘, Arial, Helvetica;

            letter-spacing: 1px;

            text-transform: uppercase;

            border-width: 1px;

            border-style: solid;

            border-color: #fff #ccc #999 #eee;

            background: #c1c1c1;

            background: -moz-linear-gradient(#f5f5f5, #c1c1c1);

            background: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#c1c1c1));

            background: -webkit-linear-gradient(#f5f5f5, #c1c1c1);

            background: -o-linear-gradient(#f5f5f5, #c1c1c1);

            background: -ms-linear-gradient(#f5f5f5, #c1c1c1);

            background: linear-gradient(#f5f5f5, #c1c1c1);            

         }

         

        nav a:hover, nav a:focus {

            outline: 0;

            color: #fff;

            text-shadow: 0 1px 0 rgba(0,0,0,.2);

            background: #fac754;

            background: -moz-linear-gradient(#fac754, #f8ac00);

            background: -webkit-gradient(linear, left top, left bottom, from(#fac754), to(#f8ac00));

            background: -webkit-linear-gradient(#fac754, #f8ac00);

            background: -o-linear-gradient(#fac754, #f8ac00);

            background: -ms-linear-gradient(#fac754, #f8ac00);

            background: linear-gradient(#fac754, #f8ac00);

        }

        

        nav a:active {

            -moz-box-shadow: 0 0 2px 2px rgba(0,0,0,.3) inset;

            -webkit-box-shadow: 0 0 2px 2px rgba(0,0,0,.3) inset;

            box-shadow: 0 0 2px 2px rgba(0,0,0,.3) inset;

        }

         

        nav li:first-child a {

            border-left: 0;

            -moz-border-radius: 4px 0 0 4px;

            -webkit-border-radius: 4px 0 0 4px;

            border-radius: 4px 0 0 4px;            

        }

        

        nav li:last-child a {

            border-right: 0;

            -moz-border-radius: 0 4px 4px 0;

            -webkit-border-radius: 0 4px 4px 0;

            border-radius: 0 4px 4px 0;            

        }

        

        /*----------------------*/

        

        #about

        {

            color: #999;

            text-align: center;

        }

        

        #about a

        {

            color: #eee;

        } 

    </style>

<nav>

    <ul>

        <li><a href="">Home</a></li>

        <li><a href="">Categories</a></li>

        <li><a href="">About</a></li>				

        <li><a href="">Portfolio</a></li>

        <li><a href="">Contact</a></li>

    </ul>

</nav>