title: Center a field set with CSS
body: <p>I'm trying to center a fieldset containing the login "username" and "password" fields to the center of the page. Here is what I have:</p>
  
  <pre><code>fieldset{
    border: 1px solid rgb(255,232,57);
    width: 400px;
    float: left;
  }
  </code></pre>
  
  <p>I want the fieldset to be centered in the window, regardless of window size. Googling produced nothing helpful, such as <code>float: center</code> or <code>align: center</code> attributes.</p>