>const PlaceholderAlignment(4)</code></span>
          </div>
        </dd>
        <dt id="middle" class="constant">
          <span class="name ">middle</span>
          <span class="signature">&#8594; const <a href="dart-ui/PlaceholderAlignment-class.html">PlaceholderAlignment</a></span>
                  </dt>
        <dd>
          <p>Align the middle of the placeholder with the middle of the text.</p>
<p>When the placeholder is very tall, the extra space will grow equally
from the top and bottom of th