.seize{position:relative;width:100%;height:52px}.seize .fixed-box{position:fixed;bottom:0;height:52px;line-height:52px;padding:0 30px;background-color:#fff;-webkit-box-shadow:0 -8px 2px 0 #f5f5f5;box-shadow:0 -8px 2px 0 #f5f5f5;border-radius:3px;z-index:12}.loading-defined{width:100%}.loading-defined .txt-item{margin:20px 0;font-size:14px;text-align:center;color:#666}