您需要完成页面的页眉、设计、页脚和分隔符。

You need to complete the section's header, design, footer, and separator.

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举例来说，你需要在主页面的页眉添加链接，以链接到外部资源。

For example, you need to add some links to external resources to the main web page header.

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如何我可以设置页眉和页脚在每个页面的？

How can I able to set the header and footer on each of the page?

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