HTML 元素和有效 DOCTYPES (html为什么只需要写doctype)

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HTML 元素和有效 DOCTYPES

HTML 元素 - 有效 DOCTYPES

下面的表格列出了所有的 HTML5/HTML 4.01/XHTML 元素，以及它们会出现在什么文档类型 (!DOCTYPE) 中：

HTML 4.01 / XHTML 1.0
Tag HTML5 Transitional Strict Frameset XHTML 1.1
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
No Yes Yes Yes Yes
Yes Yes Yes Yes Yes
No Yes No Yes No
Yes Yes Yes Yes No
Yes No No No No
Yes No No No No
Yes No No No No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
No Yes No Yes No
Yes No No No No
Yes Yes Yes Yes No
No Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes

Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes No No No No
Yes Yes Yes Yes Yes
No Yes No Yes No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes No
Yes Yes Yes Yes No
Yes No No No No
Yes No No No No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes No
Yes No No No No
Yes Yes Yes Yes Yes
No Yes No Yes No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes No No No No
Yes Yes Yes Yes Yes
Yes No No No No
Yes No No No No
No Yes No Yes No
Yes No No No No
Yes Yes Yes Yes Yes
No No No Yes No
No No No Yes No

to

Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes No No No No
Yes No No No No
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes