title: Does one need to put aria-label on a form submit button?
body: <p>As the title says, for accessibility we need to put a aria-label on elements where label text is not visible or not present, for example a dismiss button with only an "X".</p>
  
  <p>I take it as if a button has text, then the aria-label won't be needed, for example:</p>
  
  <pre><code>&lt;button&gt;Submit&lt;/button&gt;
  </code></pre>
  
  <p>But what about:</p>
  
  <pre><code>&lt;input type="submit" value="Submit"/&gt;
  </code></pre>
  
  <p>Does the input submit button need an aria-label?</p>