#logo {
           margin-left: auto;
           margin-right: auto;
           display: block;
           width: 50%;
           display: none;
       }

      .bd-placeholder-img {
        font-size: 1.125rem;
        text-anchor: middle;
        -webkit-user-select: none;
        -moz-user-select: none;
        user-select: none;
      }

      @media (min-width: 768px) {
        .bd-placeholder-img-lg {
          font-size: 3.5rem;
        }
      }

      .sticky-top { top: 4em; }

      .bi-check-circle-fill {
          color: limegreen;
      }

input[type="range"] {
  pointer-events: none;
}
input[type="range"]::-webkit-slider-thumb {
  pointer-events: all;
}
input[type="range"]::-moz-range-thumb {
  pointer-events: all;
}