.export-by-page-container{display:inline}.export-by-page-container .mask{position:fixed;top:0;left:0;bottom:0;right:0;background:rgba(0,0,0,.8);z-index:1001;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}