#kln-popup {
  position: fixed;
  top:0; left:0;
  width:100%; height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:9999;
}
.kln-popup-content {
  text-align:center;
  padding:20px;
}
.kln-popup-img {
  max-width:500px;
  width:100%;
  height:auto;
}
.kln-popup-btn {
  display:inline-block;
  margin-top:20px;
  padding:12px 24px;
  background:#000;
  color:#fff;
  text-decoration:none;
  border-radius:8px;
}
@media(max-width:768px){
  .kln-popup-img {
    max-width:100%;
  }
}