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

.popup-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: transparent;
  padding: 5px;
  border-radius: 10px;
}

#close-popup {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #ff0000;
  color: #ffffff;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s ease;
}

#close-popup:hover {
  background-color: #cc0000;
}

@media screen and (max-width: 768px) {
  #my-video {
    width: 100%;
    height: auto;
    border-radius: 10px;
  }

  .popup-content {
    width: 100%;
    max-width: 100%;
  }
}