If the CCSID is not specified, the code page that is used is the one specified in any of these three layers.

如果未指定CCSID，所使用的代码页就是下列三层之一所指定的。

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The big realization, and the first step to Web page nirvana, is that these three layers are not orthogonal.

最实际的，也是设计 Web 页面的第一步，就是这 3 个层是垂直的。

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Also important is the number of layers (Z-index) that can be placed on a Web page to accommodate the overflow of the expanded text and more intensive graphic images.

(z索引的)层次数目也是很重要的，这些层可以放在Web页面上用于调整扩展文字和更密集图形图像的溢出。

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