When the ball is painted, the border radius means that the edges are anti-aliased.

当球被画时，边界半径意味着边缘是消除锯齿的。

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The shorthand for border radius is similar to the padding and margin property (eg. border-radius: 20px).

边界半径 (border radius) 的写法类似内边距 (padding) 和 外边距 (margin) 属性（例如：border-radius:20px）。

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The update brings intellisense for many CSS3 features including Multi-columns, Border-Radius, Animation, Transitions and Transforms.

更新带来许多了CSS3功能，包括：多列、圆角边框、动画、过渡和转换。

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