.popup {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
}

.popup-content {
  background: white;
  padding: 20px;
  position: relative;
  text-align: center;
  max-width: 500px;
  margin: auto;
}

.close {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 20px;
  cursor: pointer;
}

.carousel2 img {
  max-width: 100%;
  height: auto;
}

.controls button {
  margin: 10px;
}