d screen reader users can navigate and explore the tree without changing the content of the file viewer.
          To learn more about this aspect of the design, see
          <a href="../../../practices/keyboard-interface/keyboard-interface-practice.html#kbd_selection_follows_focus">Deciding When to Make Selection Automatically Follow Focus</a>.
        </p>
        <table aria-labelledby="kbd_label" class="def">
          <thead>
            <tr>
              <th>Key</th>
              <th>Function</th>
