/*本例css*/
.www51buycom { width:100%; height:420px; margin:14px auto 0 auto; position: relative;}

/*数字按钮样式*/
.www51buycom .num { overflow:hidden; height: 25px; position: absolute; bottom:12px; right: 15px; zoom:1; z-index:3 }
.www51buycom .num li { width: 25px; height: 25px; line-height: 25px; text-align: center; font-weight: 400; font-family: "微软雅黑", Arial; color: #FFFFFF; background: #444444; margin-right: 10px; border-radius:50%; cursor:pointer; float: left; }
.www51buycom .num li.on { background: #FF7700; } /*当前项*/

/*上一个  下一个*/
.www51buycom .prev,
.www51buycom .next { display: none; width: 40px; height: 100px; background: url("../images/btn.png")/*tpa=http://www.7treegift.com/images/btn.png*/ no-repeat; position: absolute; top: 115px;}
.www51buycom .prev { left: 0; }
.www51buycom .next { right: 0; background-position: right }