title: Is an empty href valid?
body: <p>One of our web developers uses the following html as a placeholder for styling a drop down list.</p>
  
  <pre><code>&lt;a href="" class="arrow"&gt;&lt;/a&gt;
  </code></pre>
  
  <p>Is this considered anchor tag valid?  </p>
  
  <p>Since there is no href value, it shows up as broken on some of our link checker reports.</p>