body {
        margin: 0;
        padding: 0;
      }
      #map {
        position: absolute;
        top: 0;
        bottom: 0;
        width: 100%;
      }
      .marker {
        background-image: url('https://www.isolexengineering.it/images3d/mapbox-icon.png');
        background-size: cover;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        cursor: pointer;
      }
      .mapboxgl-popup {
        max-width: 200px;
      }
      .mapboxgl-popup-content {
        text-align: center;
        font-family: 'Open Sans', sans-serif;
      }