.bgm {
  padding:0;background: #061d66;
}
.bgm iframe {
  width: 100%;
}
.bgm iframe {
  border: 1px solid blue;
  /* Example border color */
}
    #map {
      height: 400px;
      width: 100%;
      position: relative;
    }

    #map::after {
      content: "";
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 20px;
      /* Adjust the size of your marker */
      height: 20px;
      /* Adjust the size of your marker */
      background-color: blue;
      /* Adjust the color of your marker */
      border-radius: 50%;
      z-index: 1;
      /* Ensure the marker appears above the map */
    }