.about1200{width:1200px;margin:0 auto;background:#fff}.tupian{padding:20px 0}.tupian ul{margin-left:-30px}.tupian ul li{float:left;margin-left:53px;height:292px;margin-bottom:20px}.tupian ul li h3{text-align:center;color:#333;margin-top:5px;font-size:14px;height:40px;line-height:20px;width:189px}