    display: flex;
        flex-direction: column;
        align-items: center;
      }

      .result {
        display: flex;
      }

      .original, .processed {
        flex-basis: 50%;
      }

      #output, #photo {
        max-width: 100%;
      }

      .fullscreen {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
      }

      .captureViewer, .perspectiveViewer {
        display: none;
      }
    </style>
  </head>
  <