#popup-offer {
  position: fixed;
  top: 0; left: 0;
  width:100%; height:100%;
  background: rgba(0,0,0,0.6);
  display:flex;
  justify-content:center;
  align-items:center;
  z-index:9999;
}
#popup-offer .popup-content {
  position: relative;
  background: #fff;
  padding:10px;
  border-radius: 10px;
  max-width: 400px;
}
#popup-offer img {
  max-width: 100%;
  cursor: pointer;
}
#popup-offer .popup-close {
  position: absolute;
  top:-60px; 
  right:-32px;
  cursor: pointer;
  font-size: 55px;
  color: white;
}