#mask {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 9000;
  background-color: #000;
  display: none;
}
 
#boxes .window {
  position: fixed;
  left: 0;
  top: 0;
  width: 440px;
  height: 200px;
  display: none;
  z-index: 9999;
  padding: 20px;
  border-radius: 15px;
  text-align: center;
}
 
#boxes #dialog {
  width: 550px;
  height: 370px;
  padding: 10px;
  background-color: #ffffff;
  font-family: 'Segoe UI Light', sans-serif;
  font-size: 15pt;
}
 
#popupfoot {
   position: absolute;bottom: 10px; right: 15px; width: 18px; height: 17px; background:  no-repeat 0 0; display: block;
}