title: How to validate vendor prefixes in CSS like -webkit- and -moz-?
body: <p>I use the webkit/mozilla border radius and box shadow CSS properties, but I want the CSS to validate (which it currently does not). Is there a way to get it to validate?</p>
  
  <p><a href="http://jigsaw.w3.org/css-validator/" rel="nofollow noreferrer">http://jigsaw.w3.org/css-validator/</a></p>