#mask {
  position:absolute;
  left:0;
  top:0;
  z-index:9000;
  background-color:#000;
  display:none;
}
  
.window {
  position:absolute;
  left:0;
  top:0;
  display:none;
  background-color:#FFF;
  z-index:9999;
}

.close{
	display:block; 
	text-align:right;
}