title: css explained for selecting the aplicable element
body: <p>Can somebody please explain what the selectors mean?
  As far as I understand having #myId - is css for control with id=myId.
  .myClass is Css for controls with class myClass.
  Can somebody please explain the other combinations?</p>
  
  <pre><code>div.img a:hover img
    {
    border:1px solid #0000ff;
    }
  div.desc
    {
    text-align:center;
    font-weight:normal;
    width:120px;
    margin:2px;
    }
  </code></pre>