#doboz
{ position: fixed;
  left: 25px;
  top: 25px;
}

#fuggony
{ visibility: hidden;
  position: fixed;
  top: 0;
  left: 0;
  opacity: 0.75;
  width: 100%;
  height: 775px;
  background-color: black;
  z-index: 1000;
}

#buborek
{ visibility: hidden;
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translate(-50%, 0);
  width: 1000px;
  height: 740px;
  background-color: white;
  z-index: 1001;
  text-align: center;
}

#buborekban
{ margin: 0;
  position: absolute;
  top: 50%;
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  width: 1000px;
}