title: How to set minimum height for a div?
body: <p>I have a page in which expanding content flows out of the holding div, the relevant CSS is below as well.  Simply removing the <code>height:510px</code> line will allow the <code>div</code> to expand as needed.  However, new users who have no content will not have any height and the page will look unblanced.  How do I set a minimum height?</p>
  <pre><code>.Bb1
    {
    width:680px;
    height:510px;
    background-color:#ffffff; 
    float:left;
    border-right:3px solid #edefed;
    border-radius: 10px;
    }
  </code></pre>