XHTML的DOCTYPE

最新推荐文章于 2023-06-29 16:33:13 发布

jiagun4

最新推荐文章于 2023-06-29 16:33:13 发布

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分类专栏：网页设计文章标签： xhtml 文档 html features browser 框架

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一个XHTML文档必须得有<!DOCTYPE>
XHTML文档主要由下面三个方面构成

DOCTYPE
Head
Body
基本的文档结构为：
<!DOCTYPE ...>
<html>
<head>
<title>... </title>
</head>
<body> ... </body>
</html>文档声明必须出现在XHTML文档的首行。

XHTML DTD所描述的XHTML标签是精确的，计算机易读性好的，语法和文理都合适的
当前的三类 XHTML 文档类型:

STRICT 严密型
TRANSITIONAL 过渡型
FRAMESET 框架型

严密型

<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">Use this when you want really clean markup, free of presentational clutter. Use this together with Cascading Style Sheets.

XHTML 1.0 Frameset
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">Use this when you want to use HTML Frames to partition the browser window into two or more frames.
XHTML DTD:xhtml文档申明2006-4-9 19:47:14 www.aspxuexi.com

过渡型
XHTML 1.0 Transitional
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">Use this when you need to take advantage of HTML''s presentational features and when you want to support browsers that don''t understand Cascading Style Sheets.

框架型