doctype html的意思|示意

While the DOCTYPE declaration informs a browser to use standards mode, it will still parse the HTML according to the rules in that DTD — in this case, HTML 4.0.

虽然DOCTYPE声明告诉浏览器使用标准模式，但是它仍然会根据那个DTD——即HTML 4.0的规则去解析html。

This is the canonical doctype for HTML 5 Web pages.

这是用于HTML 5 web页面的规范doctype。

So if you've got a doctype that claims XHTML 1.0 strict, and your page really is HTML 4.01 transitional, the Validator will tell you that.

所以如果您已经获得声称是XHTML 1.0严格版的doctype，而此页面实际上是HTML 4.01过渡版，Validator将会告诉您这些。

Change your document to use the HTML 4.01 Strict DOCTYPE, and then validate your document, fixing each error reported.

将文档改为采用HTML 4.01 Strict DOCTYPE，然后验证文档并修改报告出的错误。

A mortal web designer who attaches a DOCTYPE tag to their web page saying, "this is standard HTML," is committing an act of hubris.

一个web设计者挂了一个DOCTYPE标签到他的网页上，说，“这是标准的HTML”，这是一种很傲慢的举止。

This has many examples in the wild, such as HTML DOCTYPE, some USES of XMLNS, a version identifier inside your PDF document.

这样的例子有很多，如HTML DOCTYPE, XMLNS的某些使用或PD F文档中的某个版本标识。