#focus
        {
            width:535px;
            height: 298px;
            overflow: hidden;
            position: relative;
        }
        #focus ul
        {
            height:298px;
            position: absolute;
        }
        #focus ul li
        {
            float: left;
            width:535px;
            height: 298px;
            overflow: hidden;
            position: relative;
            background: #000;
        }
        #focus ul li div
        {
            position: absolute;
            overflow: hidden;
        }
        #focus .btnBg
        {
            position: absolute;
            width:535px;
            height: 30px;
            left: 0;
            bottom: 0;
            background: #000;
        }
        #focus .slbtn
        {
            position: absolute;
            width:525px;
            height: 10px;
            padding-right:10px;
            right: 0;
            bottom: 0;
            text-align: right;
            height:25px;
        }
         #focus a{ color:White;}
        #focus .slbtn b{ float:left; color:White;margin-left:1em;}
        #focus .slbtn span
        {
            display: inline-block;
            _display: inline;
            _zoom: 1;
            width: 25px;
            height: 10px;
            _font-size: 0;
            margin-left: 5px;
            cursor: pointer;
            background: #fff;
            margin-top:5px;
        }
        #focus .slbtn span.on
        {
            background: #fff;
        }
        #focus .preNext
        {
            width: 45px;
            height: 100px;
            position: absolute;
            top: 90px;
            background: url(img/sprite.png) no-repeat 0 0;
            cursor: pointer;
        }
        #focus .pre
        {
            left: 0;
        }
        #focus .next
        {
            right: 0;
            background-position: right top;
        }