.font-family{font-family:serif;color:#000}.border{border:1px solid #666;-webkit-box-shadow:4px 4px 4px #c9c9c9;box-shadow:4px 4px 4px #c9c9c9}.text-align-right{text-align:right}.text-align-center{text-align:center}.text-indent{text-indent:25px；}.margin-top{margin-top:20px}.margin-top1{margin-top:100px}.margin-left1{margin-left:57px}.margin-left{margin-left:65px}.letter-spacing{letter-spacing:3px}.line-height{line-height:35px}.float-right{float:right;position:relative;bottom:140px;right:50px}.img-opacity{opacity:.6}.btn-box{position:relative;top:-50px}.download{border-right:1px solid #fff}