Hey guys, I have just validated all my HTML pages for a web site I am working using the W3C validator. I thought I would run my CSS file through the CSS validator and was presented with lots of errors. Many of the errors that were displayed read something like this, "Property -moz-transform doesn't exist : translateY(-100px)". (Giving lots of "property" errors) Without these properties, I don't think I can achieve the desired effects using CSS in another way. I am new to web design/development so I'm still learning some of the basics. My question: Is the W3C CSS validator up to date? I am sure that I have seen some of the properties I have used demonstrated on this website (W3Schools). So surely they are valid? Thanks in advance for any replies. Paul.