title: Buttons with transparent blurred background
body: <p>I don't know how to create the css class code for some kind of buttons that have rounded corners and transparent blurred background like iOS7 has .<br />
  Example image:<br />
  <a href="http://i.stack.imgur.com/n3mLR.jpg" rel="nofollow">http://i.stack.imgur.com/n3mLR.jpg</a></p>