.modal-window {
  position: fixed;
  background-color: rgba(0, 0, 0, 0.75);
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
}
.modal-window:target {
  opacity: 1;
  pointer-events: auto;
}
.modal-window > div {
  width: 90%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 2em;
  background: rgba(0,0,0,.75);
  color: #fff;
}
.modal-window header {
  font-weight: bold;
}



.modal-close {
  width: 70px;
  height: 70px;
  box-shadow: 0px 10 10px 10px rgba(0, 0, 0, 0.25);
  border-radius: 10px;
  background: #000000;
  left: 100%;
  top: 14%;
  margin-top: -75px;
  margin-left: -75px;
  position: absolute;
  display: block;
  z-index: 200;
  text-indent: -9999px;
}
.modal-close:before,
.modal-close:after {
  content: '';
  width: 55%;
  height: 2px;
  background: #ffffff;
  position: absolute;
  top: 48%;
  left: 22%;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
  -webkit-transition: all 0.3s ease-out;
  -moz-transition: all 0.3s ease-out;
  -ms-transition: all 0.3s ease-out;
  -o-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
}
.modal-close:after {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  -webkit-transition: all 0.3s ease-out;
  -moz-transition: all 0.3s ease-out;
  -ms-transition: all 0.3s ease-out;
  -o-transition: all 0.3s ease-out;
  transition: all 0.3s ease-out;
}
.modal-close:hover:before,
.modal-close:hover:after {
  -webkit-transform: rotate(180deg);
  -moz-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
  -o-transform: rotate(180deg);
  transform: rotate(180deg);
}