A CSS rule consists of a selector and a declaration block.

CSS规则由一个选择符和一个声明块组成。

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The declaration block is surrounded by curly braces and made up of declarations.

声明块放在大括号中，由声明组成。

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When a user agent can't parse the selector, it must ignore the declaration block as well.

当一个用户代理不能解析某个选择器的时候，它必须忽略整个声明块。

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The declaration was passed unopposed, but the entire Soviet block abstained, along with Saudi Arabia.

ECONOMIST: A survey of human-rights law