请在页标题、页头栏和页面正文的第一句话中使用这些关键词。
Use these keywords in the page title, page heading, and first sentence of the page's body.
页头栏：在页面正文中(body标记中)，元素用于突出显示该页面的重要文字。
Page heading: in the body of the page, the element is used to highlight the key text in the page.
浏览器加载页逐步标头，该徽标，在该的顶部栏导航时等所有作为为正在等待页的用户的视觉反馈。
When the browser loads the page progressively the header, the navigation bar, the logo at the top, etc. all serve as visual feedback for the user who is waiting for the page.
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