title: How can I controle the visibility level of a div and make it see through?
body: <p>Can I control the visibility of some <em>div</em> in my website and make to become see-through using CSS only? In flash it's done through controlling what is called <em>Alfa</em> so I'm wondering if such a thing exist in CSS!</p>
  
  <p><strong>Edition 001</strong></p>
  
  <p>Can I control the opacity of the <em>div</em>'s background only? So the text in the div wouldn't be effected?</p>