In this article you learned how to take a semantically structured Web site and apply styling techniques using CSS to achieve the screen and print styles desired.

在本文中，您学习了如何建立结构符合语义的Web站点，以及使用CSS实现所需的屏幕和打印样式。

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You could argue that only rules that apply to every page of a site belong in a site-wide CSS, but that sort of logic sounds better in print than it does in practice.

您可以争论说，只有应用于站点每个页面的规则属于站点范围的CSS，但这种逻辑只是说起来比做起来容易的典范。

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