CSS3 Validation Service - @keyframes and animation

Dear CSS Validator Team,

Firstly, I wanted to thank you for creating such a fantastic service and
for your continued dedication to standards on the web!

I have been trying to check the conformity of some CSS3 stylesheets and I
believe the W3C CSS validator must be a little out of date since using
valid mark-up for the CSS3 animation property returns "Property animation
doesn't exist" even though it is implemented in Firefox 5+, Chrome, Safari
and Opera with -moz-, -webkit-, -webkit- and -o- prefixed respectively.

Similarly, using valid markup for the @keyframes property returns "Sorry,
the at-rule @keyframes is not implemented." even though it is implemented
in Firefox 4+, Chrome, Safari and Opera with -moz-, -webkit-, -webkit- and
-o- prefixed respectively.

My point of reference has been the W3C Schools website:
http://www.w3schools.com/cssref/css3_browsersupport.asp and I have tested
working examples of animation and @keyframes in Chrome and Firefox.

Kind regards and looking forward to hearing from you,

Jasdeep HBS Khalsa
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