.modal{position:absolute;top:50%;left:50%;right:auto;bottom:auto;transform:translate(-50%,-50%);background:white;padding:20px;border-radius:4px;outline:none;max-height:90%;overflow:auto}.modal-overlay{z-index:60;position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.75)}