.modal-mask{position:fixed;z-index:9998;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);display:table;transition:opacity .3s ease}.modal-wrapper{display:table-cell;vertical-align:middle}.img-cover-book-table{width:60px;overflow:hidden}.img-cover-book-table img{max-width:100%}.book-cover{width:179px;height:259px;margin:auto}.helper-cover-book{display:inline-block;height:100%;vertical-align:middle}.img-cover-book{width:100%;vertical-align:middle}