<\/span><\/h2>\n\n\n\nM\u1ed9t t\u00e0i li\u1ec7u XHTML b\u1eaft bu\u1ed9c ph\u1ea3i c\u00f3 khai b\u00e1o XHTML DOCTYPE.<\/p>\n\n\n\n
M\u1ed9t danh s\u00e1ch \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a t\u1ea5t c\u1ea3 XHTML Doctypes \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong ph\u1ea7n th\u01b0 m\u1ee5c c\u00e1c th\u1ebb HTML c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n\n\n\n
C\u00e1c th\u1ebb <html>, <head>, <title>, v\u00e0 <body> ph\u1ea3i c\u00f3 v\u00e0 thu\u1ed9c t\u00ednh xmlns trong <html> ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh c\u1ee5 th\u1ec3 kh\u00f4ng gian xml cho t\u00e0i li\u1ec7u.<\/p>\n\n\n\n
V\u00ed d\u1ee5 d\u01b0\u1edbi tr\u00ecnh b\u00e0y t\u00e0i li\u1ec7u XHTML chu\u1ea9n v\u1edbi t\u1ed1i thi\u1ec3u c\u00e1c th\u1ebb c\u1ea7n thi\u1ebft:<\/p>\n\n\n\n
<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD XHTML 1.0 Transitional\/\/EN\"\n\"http:\/\/www.w3.org\/TR\/xhtml1\/DTD\/xhtml1-transitional.dtd\"><html xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\"><head>\n<title>Title of document<\/title>\n<\/head>\n<body>\nsome content\n<\/body>\n\n<\/html><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>C\u00e1c th\u1ebb XHTML b\u1eaft bu\u1ed9c ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ed3ng v\u00e0o nhau \u0111\u00fang c\u00e1ch<\/span><\/h2>\n\n\n\nTrong HTML, m\u1ed9t s\u1ed1 th\u1ebb c\u00f3 th\u1ec3 l\u1ed3ng v\u00e0o nhau kh\u00f4ng \u0111\u00fang c\u00e1ch, gi\u1ed1ng nh\u01b0 th\u1ebf n\u00e0y:<\/p>\n\n\n\n
<b><i>\u0110\u00e2y l\u00e0 \u0111o\u1ea1n v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c b\u00f4i \u0111\u1eadm v\u00e0 in nghi\u00eang<\/b><\/i><\/code><\/pre>\n\n\n\nTrong XHTML, t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n t\u1eed ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ed3ng v\u00e0o nhau \u0111\u00fang c\u00e1ch, \u0111o\u1ea1n code tr\u00ean c\u1ea7n s\u1eeda l\u1ea1i nh\u01b0 sau m\u1edbi \u0111\u00fang trong XHTML:<\/p>\n\n\n\n
<b><i>\u0110\u00e2y l\u00e0 \u0111o\u1ea1n v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c b\u00f4i \u0111\u1eadm v\u00e0 in nghi\u00eang<\/i><\/b><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>C\u00e1c th\u1ebb XHTML ph\u1ea3i lu\u00f4n lu\u00f4n \u0111\u01b0\u1ee3c \u0111\u00f3ng<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y l\u00e0 sai:<\/p>\n\n\n\n
<p>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n\n<p>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n kh\u00e1c<\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<p>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n<\/p>\n<p>\u0110\u00e2y l\u00e0 \u0111o\u1ea1n v\u0103n b\u1ea3n kh\u00e1c<\/p><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>C\u00e1c ph\u1ea7n t\u1eed r\u1ed7ng c\u0169ng ph\u1ea3i \u0111\u00f3ng l\u1ea1i<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y l\u00e0 sai:<\/p>\n\n\n\n
Xu\u1ed1ng d\u00f2ng: <br>\nM\u1ed9t \u0111\u01b0\u1eddng k\u1ebb ngang: <hr>\nM\u1ed9t h\u00ecnh \u1ea3nh: <img src=\"happy.gif\" alt=\"Happy face\"><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
A break: <br \/>\nA horizontal rule: <hr \/>\nAn image: <img src=\"happy.gif\" alt=\"Happy face\" \/><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>C\u00e1c ph\u1ea7n t\u1eed XHTML ph\u1ea3i \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ch\u1eef in th\u01b0\u1eddng<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y l\u00e0 sai:<\/p>\n\n\n\n
<BODY>\n<P>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n<\/P>\n<\/BODY><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<body>\n<p>\u0110\u00e2y l\u00e0 v\u0103n b\u1ea3n<\/p>\n<\/body><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>T\u00ean c\u1ee7a thu\u1ed9c t\u00ednh XHTML ph\u1ea3i \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ch\u1eef in th\u01b0\u1eddng<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y l\u00e0 sai:<\/p>\n\n\n\n
<table WIDTH=\"100%\"><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<table width=\"100%\"><\/code><\/pre>\n\n\n\n<\/span>Gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh ph\u1ea3i \u0111\u01b0\u1ee3c cho v\u00e0o d\u1ea5u nh\u00e1y k\u00e9p<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y l\u00e0 sai:<\/p>\n\n\n\n
<table width=100%><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<table width=\"100%\"><\/code><\/pre>\n\n\n\n<\/span>Gi\u1ea3m thi\u1ec3u, r\u00fat g\u1ecdn thu\u1ed9c t\u00ednh b\u1ecb c\u1ea5m<\/span><\/h2>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y \u0111i sai:<\/p>\n\n\n\n
<input type=\"checkbox\" name=\"vehicle\" value=\"car\" checked \/><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<input type=\"checkbox\" name=\"vehicle\" value=\"car\" checked=\"checked\" \/><\/code><\/pre>\n\n\n\n
\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y l\u00e0 sai:<\/p>\n\n\n\n
<input type=\"text\" name=\"lastname\" disabled \/><\/code><\/pre>\n\n\n\nVi\u1ebft nh\u01b0 th\u1ebf n\u00e0y m\u1edbi \u0111\u00fang:<\/p>\n\n\n\n
<input type=\"text\" name=\"lastname\" disabled=\"disabled\" \/><\/code><\/pre>\n\n\n\n
\n\n\n\n<\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1eeb HTML th\u00e0nh XHTML<\/span><\/h2>\n\n\n\n- Th\u00eam XHTML <!DOCTYPE> v\u00e0o d\u00f2ng \u0111\u1ea7u ti\u00ean c\u1ee7a m\u1ed7i trang;<\/li>
- Th\u00eam thu\u1ed9c t\u00ednh xmlns v\u00e0o ph\u1ea7n t\u1eed html c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c trang;<\/li>
- Thay \u0111\u1ed5i t\u00ean t\u1ea5t c\u1ea3 c\u00e1c ph\u1ea7n t\u1eed v\u1ec1 k\u00fd t\u1ef1 th\u01b0\u1eddng;<\/li>
- \u0110\u00f3ng t\u1ea5t c\u1ea3 c\u00e1c th\u1ebb r\u1ed7ng;<\/li>
- Thay \u0111\u1ed5i t\u1ea5t c\u1ea3 t\u00ean c\u1ee7a thu\u1ed9c t\u00ednh th\u00e0nh k\u00fd t\u1ef1 th\u01b0\u1eddng;<\/li>
- Cho t\u1ea5t c\u1ea3 c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a thu\u1ed9c t\u00ednh v\u00e0o d\u1ea5u nh\u00e1y k\u00e9p;<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"
XHTML l\u00e0 HTML vi\u1ebft d\u01b0\u1edbi d\u1ea1ng XML. XHTML l\u00e0 g\u00ec? XHTML l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a\u00a0EXtensible HyperText Markup Language (Ng\u00f4n ng\u1eef HTML m\u1edf r\u1ed9ng); XHTML g\u1ea7n gi\u1ed1ng h\u1ec7t HTML; XHTML ch\u1eb7t ch\u1ebd h\u01a1n HTML; XHTML l\u00e0 HTML \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng \u1ee9ng d\u1ee5ng c\u1ee7a XML; XHTML \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi t\u1ea5t c\u1ea3 tr\u00ecnh duy\u1ec7t l\u1edbn; T\u1ea1i …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[235],"tags":[],"yoast_head":"\n
HTML v\u00e0 XHTML gi\u1ed1ng v\u00e0 kh\u00e1c nhau nh\u1eefng g\u00ec? • Ki\u1ebfn c\u00e0ng<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiencang.net\/html-va-xhtml-giong-va-khac-nhau\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HTML v\u00e0 XHTML gi\u1ed1ng v\u00e0 kh\u00e1c nhau nh\u1eefng g\u00ec? • Ki\u1ebfn c\u00e0ng\" \/>\n<meta property=\"og:description\" content=\"XHTML l\u00e0 HTML vi\u1ebft d\u01b0\u1edbi d\u1ea1ng XML. XHTML l\u00e0 g\u00ec? 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Email li\u00ean h\u1ec7: guiemailchotoi@gmail.com","sameAs":["https:\/\/www.facebook.com\/anhducnguyen87\/"],"url":"https:\/\/kiencang.net\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/2609"}],"collection":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/comments?post=2609"}],"version-history":[{"count":0,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/posts\/2609\/revisions"}],"wp:attachment":[{"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/media?parent=2609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/categories?post=2609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kiencang.net\/wp-json\/wp\/v2\/tags?post=2609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}