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HTML head标记和属性值(html5 header标签)

???????????

?????http-equiv ???Content-Type ?????text/html; charset=utf-8

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

??????Ч??

???????????Ч?????, ??????????????????, ??????μ?????????????????????????

?????http-equiv ???expires ?????Sun,1 Dec 2012 12:00:00 GMT

<meta http-equiv="Expires" content="Sun,1 Dec 2012 12:00:00 GMT" />
<meta http-equiv="Expires" content="<?php gmdate('D, d M Y H:i:s',time()+3600).' GMT'; ?>" />

???y??????

?????????????????????????μ?????????????????y????滺??

?????http-equiv ???cache-control ?????no-cache

<meta http-equiv="cache-control" content="no-cache" />

??????????

????????????£???????????????????(??)

?????http-equiv ???refresh ?????5

<meta http-equiv="Refresh" content="5" />

??????????

?????http-equiv ???refresh ?????5;url=http://www.xxx.com/

<meta http-equiv="Refresh" content="5;URL=http://www.xxx.com/" />

????????????

?????name ???keywords ????????????????????????????

<meta name="keywords" content="???????????????????????" />

????????????

?????name ???robots ?????All

All ??????????????????????????????????????

Index ??????????????

Nofollow ?????????????????????????

Noindex ????????????????

None ?????????????????????????????

<meta name="robots" content="All" />

??????????

?????name ???description ??????й???????--???????????

<meta name="description" content="?й???????--???????????" />

?????????????

????: name ?: author ????: LAMP Brother UI Team

<meta name="author" content="LAMP Brother UI Team" />

???????????

????: name ?: copyright ????: 2012-2014 EDU.

<meta name="copyright" content="2012-2014 EDU." />

??????????

<meta http-equiv="mobile-agent" content="format=html5;url=http://www.xxxxxx.com/mobile/">

<base> ???

base ????涨???????????????? URL??

???????£???????????????? URL ?????????????????д??? URL ?е????

??? <base> ???????????????????????????????????? URL??????????????? URL ?????????е???? URL??

?????а??? <a>??<img>??<link>??<form> ????е? URL??

<base href="???·??" target="?????"/>

?????????

href URL ?涨???????????????? URL??

target _blank ??δ???????????е????????????????????????? target ????????????????

_parent

_self

_top

_blank ??????μ?δ????????????????

_self ????????????????????????

_parent ???????????????????????????????????

_top ?????????????ó?????????,????κε??????????????????

???:

<base target="_blank"/>

???????????????<a>?????????????????_blank

<base href="http://www.xxxxxx.com" />

?????????????????"test.html"?????htp://www.xxxxxx.com/test.html?????

<basefont face="" size="" color=""/>

face????????????????????????,?????????塢???顢?????;

size?????????????????С(??λ:???),?? 1 ?? 7 ??????,??h1-h6????????????? 3??

color????????????????

<basefont face="????" size="h2" color="#666666"/>
<basefont face="????" size="5" color="red" />
<link> ???
<link rel="stylesheet" type="text/css" href="theme.css" />
favicon.ico ???
<link rel="shortcut icon" href="favicon.ico" />

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