.www51buycom { width: 100%; height: 638px; margin:0 auto; }

.www51buycom .num { overflow:hidden; height: 25px; position: absolute; top:722px; left: 45%; zoom:1; z-index:3 }
.www51buycom .num li { border-radius:3px ;width: 18px; height: 8px; line-height: 25px; text-align: center; font-weight: 400; font-family: Arial; color: #FFFFFF; background: #ffffff; margin-right: 10px; cursor:pointer; float: left; font-size:3px }
.www51buycom .num li.on {color:#d6b860; background: #d6b860;border-radius:3px; width:33px; height:8px; font-size:3px;}

.www51buycom .prev,
.www51buycom .next { display: none; width: 50px; height: 50px; background: url(../images/btn2.png) no-repeat; position: absolute; top: 460px;}
.www51buycom .prev { left: 100px; }
.www51buycom .next { right: 100px; background-position: right }