/* css 重置 */
ul { list-style: none ; }

/*本例css*/
.bannerbox { width: 1000px; height: 300px; margin:0px auto; position: relative; overflow:hidden;}

/*数字按钮样式*/
.bannerbox .num { overflow:hidden; height: 25px; position: absolute; bottom:12px; right: 15px; z-index:3 }
.bannerbox .num li { width: 25px; height: 25px; line-height: 25px; text-align: center; font-family: "微软雅黑"; color: #FFFFFF; background: #444444; margin-right: 10px; cursor:pointer; float: left; }
.bannerbox .num li.on { background: #FF7700; } 


/*上一个  下一个*/
.bannerbox .prev,
.bannerbox .next { display: none; width: 40px; height: 100px; background: url(../images/btn.png) no-repeat; position: absolute; top: 100px;}
.bannerbox .prev { left: 0; }
.bannerbox .next { right: 0; background-position: right }