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html 5头部写法 几个最显著的特征

2013-02-28 14:50 357 查看
1,看一下头部

先看一下xhtml的写法

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>title</title>
<meta name="description" content="description"/>
<link rel="stylesheet" type="text/css" href="/c3.css" />
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta http-equiv="Content-Language" content="zh-cn" />
<meta name="robots" content="all" />
<meta name="author" content="lunanzuche.com.cn" />
<meta name="Copyright" content="Copyright www.lunanzuche.com All Rights Reserved." />
<meta name="MSSmartTagsPreventParsing" content="true" />
<meta http-equiv="imagetoolbar" content="false" />

看一下html5

<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
<meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<title>Goldman Sachs</title>

显著区别在于:

<meta charset="utf-8" />

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">



<!DOCTYPE html>
<html lang="en-US">

当然 lang可以不写

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
换成了:
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