表明文档包含 HTML 元素。
Identifies the document as containing HTML elements.
此元素在 Internet Explorer 及以上版本3.0 的 HTML 中可用,在 Internet Explorer 4.0 及以上版本的脚本中可用。
在 Internet Explorer 6 及以后版本中,如果你使用 !DOCTYPE 声明指定为标准兼容模式,此元素将代表画布-既文档内容所能显示的整个区域。当你切换到标准兼容模式时,此元素也将作为所有没有设置定位基准的定位对象的定位容器。如果 !DOCTYPE 声明并不指定标准兼容模式,且使用较早版本的 Internet Explorer,则 body 对象代表文档内容所能显示的整个区域。
此元素不改变显示。
此元素需要关闭标签。
This element is available in HTML as of Internet Explorer 3.0, and in script as of Internet Explorer 4.0.
With Internet Explorer 6 and later, when you use the !DOCTYPE declaration to specify standards-compliant mode, this element represents the canvas—the entire surface onto which a document's contents can be rendered. When you switch on standards-compliant mode, this element also becomes the positioning container for positioned elements that don't have a positioned parent. When the !DOCTYPE declaration does not specify standards-compliant mode, and with earler versions of Internet Explorer, the body object represents the entire surface onto which a document's contents can be rendered.
This element is not rendered.
This element requires a closing tag.
<html> <body> 这是一个非常简单的HTML文件。 </body> </html>