Sometimes "deleted" pages may say "404" or "Not found" on the page, but actually return a 200 status code in the page header; so it's good to use a proper header-checking tool to double-check.
有时“已经删除”页面可能会显示“404”或者“没有找到”，但事实上是在页头显示200状态代码；因此最好使用合适的页头检查工具再三核查。
Header: the page header shown on the page; not the same as the head element.
header：页面上显示的页眉；与head元素不一样。
If you look at the body of the HTML page near the bottom of the listing, you see that this header is literally in a header tag-one of the new HTML elements in HTML 5.
如果您查看清单3底部附近的HTML页面主体，您将看到这个标题实际上位于一个header标记中—这是HTML5中的一个新HTML元素。
Header - Region to place a canvas where the header logo and page title reside.
Header—放置存放Header徽标和页面标题的画布的区域。
Performing a similar sequence as in step 2, above, change the output page by adding the message key result.title to the header, using Format => Paragraph => Heading 1 to format the header.
按照与上面的步骤2中类似的顺序来更改输出页面，为此，您可以将消息键result.title 添加到Header，使用Format =>Paragraph =>Heading1来安排 Header的格式。
When the user moves the mouse over the header title, the header can be clicked to return back to the main or front page of the site as set in the Options panel.
当使用者把鼠标滑过页眉标题的时候，页眉可以点击并回到操作面板中设置的站点的主页或者首页。
This is why web designers, and their close cousins, banner, header and footer designers, can charge up to $50 for one good web page header, and more for a complete set.
这就是为什么网站设计者，并密切表兄弟、旗帜、头、躯设计师、可收取高达50元一箱好网页、多出一套。
This is why web designers, and their close cousins, banner, header and footer designers, can charge up to $50 for one good web page header, and more for a complete set.
这就是为什么网站设计者，并密切表兄弟、旗帜、头、躯设计师、可收取高达50元一箱好网页、多出一套。
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