title: Why the font size won't change with browser zoom in?
body: <p>In most of websites, while I change the zoom level of browsers, the font size will also increase and help user to see them. For some reasons, that just won't work on my new website. While I change the zoom level of the browser, everything changes but all font size keep the same. Is there a css or html property that I can use to control this behavior? Thanks</p>
  
  <p>here is an example:
  <a href="http://ca.skywatcher.com/index.php">http://ca.skywatcher.com/index.php</a></p>