head
和body
元素在html
标记内的HTML文档中添加其他级别的组织。任何包含有关您网页信息的标记都会显示在head
标记中。然后,任何带有页面内容(为用户显示的内容)的标记都会进入body
标签。元数据元素(例如link
, meta
, title
和style
)通常位于head
元素内。这是页面布局的示例: <!DOCTYPE html>
<HTML>
<HEAD>
<! - 元数据元素 - >
</ HEAD>
<BODY>
<! - 页面内容 - >
</ BODY>
</ HTML>
head
和body
。 head
元素应该只包含title
, body
元素应该只包含h1
和p
。 head
元素。
testString: 'assert($("head").length == 1, "There should be only one head
element on the page.");'
- text: 页面上应该只有一个body
元素。
testString: 'assert($("body").length == 1, "There should be only one body
element on the page.");'
- text: head
元素应该是html
元素的子元素。
testString: 'assert($("html").children("head").length == 1, "The head
element should be a child of the html
element.");'
- text: body
元素应该是html
元素的子元素。
testString: 'assert($("html").children("body").length == 1, "The body
element should be a child of the html
element.");'
- text: head
元素应该包围title
元素。
testString: 'assert(code.match(/\s*?head
element should wrap around the title
element.");'
- text: body
元素应该环绕h1
和p
元素。
testString: 'assert($("body").children("h1").length == 1 && $("body").children("p").length == 1, "The body
element should wrap around both the h1
and p
elements.");'
```
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```