title: Masking text for transparency in CSS (cross-browser, not IE-6 or lower)
body: <p>What I need is a black box filled with transparent text over a background image.</p>
  
  <p>See this example:
  <img src="https://i.stack.imgur.com/ExE6l.png" alt="Example"></p>
  
  <p>Is this possible? If so, how can I do it?</p>