.map-responsive {
      position: relative;
      padding-bottom: 30%; /* 16:9 aspect ratio */
      height: 0;
      overflow: hidden;
    }
    .map-responsive iframe {
      position: absolute;
      top: 0;
      left: 0;
      width: 100% !important;
      height: 100% !important;
      border: 0;
    }