/li>
      <li>Go back to step 1</li>
      <li>Under "SDF model URL", fill the full URL to the model's SDF file</li>
      <li>Click "Load model!"</li>
    </ol>

    <div>
      <div>
        <h4>Resources URLs</h4>
        <input type="text" id="resources-input"></input>
        <button onclick="addURL()" id="add-button">Add URL</button>
      </div>
      <div id="resource-list">
      </div>
      <div>
        <h4>SDF model URL</h4>
        <input type="text" id="sdf-input"></input>
        <button on