20px;
      }
      #select {
        color: blue;
        margin: 20px auto;
      }
    </style>
  </head>

  <body>
    <div>Select and drag the blue text to rectangular box.</div>
    <div id='select' draggable>blue text</div>
    <div id='drop' dropzone='link string:text/plain'></div>
    <div id='log'> </div>

    <script>
      var drop;
      setup(function() {
          drop = document.querySelector('#drop');
      }, {explicit_done: true, explicit_timeout: true});

      on_event(drop, 'drop', fun