title: Show placeholder text for input type date
body: <p>Placeholder does not work for input type <code>date</code> and <code>datetime-local</code> directly.</p>
  <pre><code>&lt;input type=&quot;date&quot; placeholder=&quot;Date&quot; /&gt;
  &lt;input type=&quot;datetime-local&quot; placeholder=&quot;Date&quot; /&gt;
  </code></pre>
  <p>Instead the field shows <em>mm/dd/yyy</em> on desktop and nothing on mobile.</p>
  <p>How can I show the <em>Date</em> placeholder text?</p>