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HTML???XHTML???????

HTML???XHTML??????????

HTML4.01
Hyper Text Markup Language???????????????????????????????????????????????????????????????????????WWW???????????????????????????????HTML4.01???????????????????????
XHTML1.0
???????HTML???XML??????????????????????????????????????HTML?????????????????????????????????????????????????????HTML??????????????????????????????????????

HTML???XHTML????????????????????????????????????????????????????????????????????????????????????????????????HTML???????????????????????????????????XHTML???Web???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????HTML4.01???XHTML1.0???????????????????????????

?????????

??? HTML4.01(Strict)

01:
02:<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
03:<HTML lang="ja">
04:<HEAD>
05:<META HTTP-EQUIV=content-type CONTENT="text/html; CHARSET=UTF-8" />
06:<TITLE>?????????????????</TITLE>
07:</HEAD>
08:<BODY>
09:<P>???????????????
10:<P><SPAN>???????????????</P></SPAN>
11:<HR>
12:</BODY>
13:</HTML>

??? XHTML1.0(Strict)

01:<?xml version="1.0" encoding="UTF-8"?>
02:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
03:<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ja" lang="ja">
04:<head>
05:<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
06:<title>?????????????????</title>
07:</head>
08:<body>
09:<p>???????????????</p>
10:<p><span>???????????????</span></p>
11:<hr />
12:</body>
13:</html>

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

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

??????? HTML4.01 XHTML1.0
01   <?xml version=”1.0″ encoding=”UTF-8″?>

XHTML?????HTML?????????????????????????????????????????????XML??????????????????????XHTML???XML???????????????????????????????????????????????????????????????????????????????????????????????
???version=”1.0″??????????????????????????????????????????????????????1.0???????????????????????????????????????encoding=”UTF-8″????????????????????????????????????????????????????????????????????????????????????????????????UTF-8???EUC-JP???Shift-JIS??????????????????????

02 <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”> <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”>

?????????????HTML???XHML???????????????????????????????????????????????????XHTML?????”HTML”???”html”??????????????????????????????????????????????
???????????DOCTYPE?????????????????????????????????????????????????????????????XHTML????????????????????????????????????????????????????????????????????????????????????DTD???????????????????????????????????????????????????????????????????????
DTD?????????????????????????????????

Strict???????????
??????????????????????????????????????????????????????Web?????????????????????????????????????????
Transitional???????????
?????????????????????????????????????????????Web?????????????????????????????????????????
Frameset????????????????????
??????????????????????Web?????????????????????????????????????????
03 <HTML lang=”ja”> <html xmlns=”http://www.w3.org/1999/xhtml” xml:lang=”ja” lang=”ja”>

??????html??????????????????????????????????????????????????????????HTML?????????????????????????????????????????XHTML???????xmlns=”http://www.w3.org/1999/xhtml”??????????????????????????????????????????????????
????????XHTML????????????????????????xml:lang?????????????????????????????????????????????????lang????????????????????????????????????

04 <HEAD> <head>

HTML????????????????????????????????????????????????????????????????????????????????????????XHTML??????????????????????????????????????

05 <META HTTP-EQUIV=content-type CONTENT=”text/html; CHARSET=UTF-8″ /> <meta http-equiv=”content-type” content=”text/html; charset=UTF-8″ />

XHTML??????????????????????????????????????????????????????????????????????????(”)?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

09 <P>??????????????? <p>???????????????</p>

XHTML???????????????????????????????

10 <P><SPAN>???????????????</P></SPAN> <p><span>???????????????</span></p>

XHTML????????????????????????????????????????????

11 <HR> <hr />

??????????????????” /”?????????????????
????????????????????????????????????????????????????????meta???????link???????img????????????????????????????????

???????HTML???XHTML????????????????????????????????????????????????????????????????????????????????????????