title: Use of alt in button tag
body: <p>I came across this line of code</p>
  
  <pre><code>&lt;button onclick="Set_Delete()" id="btnDelete" alt="submit" &gt;Delete&lt;/button&gt;
  </code></pre>
  
  <p>I'm not able to understand what is the use of alt in a button tag. Can anyone elaborate it?</p>