title: How do I center this form-button block?
body: <p>I want this form band button to line up horizontally and to sit as a whole in the horizontal center of the page.</p>
  
  <p>How do I set my css?</p>
  
  <pre><code>&lt;form action="signup.php" method="post"&gt;
           &lt;fieldset&gt;
            &lt;label&gt;Email: &lt;label&gt;
            &lt;input type="text" name="email" id="email" placeholder='email address' /&gt;
            &lt;input type="submit" value="Sign Up" class= "button" /&gt;
            &lt;/fieldset&gt;
            &lt;/form&gt;
  </code></pre>