.alertMsg{position:fixed;right:0;z-index:500;top:79px;width:22%}.preBuyImageTempalet1{height:200px;width:200px;-o-object-fit:contain;object-fit:contain}.box{position:relative;width:100%;max-width:250px}.box img{width:100%;height:auto}.box .btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}