##Related recommendations: "htmlThe outermost element is the "html" tag element, also called the root element, which is the container for all other HTML elements (except the "" tag). The "" and "" tags define the start and end points of the document, and between them are the head and body of the document.
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tag tells the browser this is an HTML document. The tag is the outermost element in an HTML document, also called the root element. The tag is a container for all other HTML elements (except the "" tag).declaration is placed first in the document, before the tag. The declaration is not an HTML tag; it is used to tell the web browser which version of HTML is used for the page.Simple HTML5 document:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>文档标题</title> </head> <body> 文档内容...... </body> </html>
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