.modal-window{position:fixed;background-color:rgba(0, 0, 0, 0.25);top:0;right:0;bottom:0;left:0;z-index:999;visibility:hidden;opacity:0;pointer-events:none;transition:all 0.3s}.modal-window:target{visibility:visible;opacity:1;pointer-events:auto}.modal-window>div{width:400px;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);padding:2em;background:white;border-radius:15px}.modal-window header{font-weight:bold}.modal-window h1{font-size:150%;margin:0 0 15px}.modal-close{color:#aaa;line-height:50px;font-size:80%;position:absolute;right:0;text-align:center;top:0;width:70px;text-decoration:none}.modal-close:hover{color:black}