@-webkit-keyframes ball { 0%, 100% { left:30px; top:107px } 30% ...
-webkit-animation: player2 4s linear 0 infinite normal;
See the webkit blog for information on how it works:
http://www.webkit.org/blog/324/css-animation-2/
See the webkit blog for information on how it works:
http://www.webkit.org/blog/324/css-animation-2/
and which define the animation keyframes and parameters.