body { margin: 0; }

.container { padding: 20px; }

.modal-window {
  position: fixed;
  left: 50%;
  top: 50px;
  width: 60%;
  padding: 30px;
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 3px 3px 5px rgba(0,0,0,.5);
  transform: translate(-50%, 0);
  -webkit-transform: translate(-50%, 0);
  z-index: 2;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
}

.modal-shade {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: rgba(0,0,0,.7);
  z-index: 1;
}