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How to use html !DOCTYPE tag

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Release： 2019-05-27 10:27:57

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How to use html !DOCTYPE tag

##HTML

<!DOCTYPE html>
<html>
<head>
<title>文档的标题</title>
</head>

<body>
文档的内容......
</body>

</html>

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declaration must be the first line of the HTML document, located at

declaration is not an HTML tag; it is an instruction to the web browser as to which version of HTML the page should be written in.

Always add the declaration to your HTML document so the browser knows the document type.

Several methods of layout reference

Three types:

1, connect to an external style sheet: (Add to the head part)

2, create an embedded style sheet: Create a style element in the head part of HTML , directly write the style rules

3, apply inline style: add a style directly within the element (such as)

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