#custom-map {
    position: relative;
    max-width: 1200px;
    margin: 30px auto;
  }
  #custom-map img {
    width: 100%;
    display: block;
  }
  .city-button {
    position: absolute;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 255, 255, 0.85);
    padding: 4px 8px;
    font-size:9px;
    border-radius: 6px;
    border: 1px solid #ccc;
    text-decoration: none;
    color: #000;
    font-weight: bold;
    transition: all 0.3s ease;
  }
  .city-button:hover {
    background-color: #007bff;
    color: #fff;
    border-color: #0056b3;
  }
  
/* Mobile responsiveness */
@media (max-width: 768px) {
  .city-button {
    font-size: 10px;
    padding: 3px 6px;
  }
}

@media (max-width: 480px) {
  .city-button {
    font-size: 6px;
    padding: 2px 5px;
  }
}