#popup-banner {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  background-color: white;
  padding: 20px;
  border: 3px solid red;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0,0,0,0.3);
  max-width: 90%;
  width: 400px;
  text-align: center;
}

.popup-content {
  position: relative;
  max-width: 400px;   /* change size here */
  width: 100%;
}

.popup-image {
  width: 100%;
  height: auto;
  max-height: 100%;
}

.close-btn {
  position: absolute;
  top: -20px;
  right: -18px;
  font-size: 24px;
  font-weight: bold;
  color: black;
  cursor: pointer;
  background: none;
  border: none;
}

@keyframes fadeInUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}