STRICT::

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

BASIC STRUCTURE

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
* HTML O O document root element head, body
* HEAD O O document head
* META F E generic metainformation O
* TITLE document title R
* BASE F E document base URI O
* LINK F E a media-independent link O
* STYLE style info
* BODY O O document body B
* H1 heading B I
* H2 heading B I
* H3 heading B I
* H4 heading B I
* H5 heading B I
* H6 heading B I
* P O paragraph B I
* ADDRESS information on author B I
* DIV generic language/style container B F
* SPAN generic language/style container I I

TEXT

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
* ABBR abbreviated form (e.g., WWW, HTTP,etc.)*4 I I
* ACRONYM Indicates an acronym (e.g., WAC, radar, etc.). I I
* EM emphasis I I
* STRONG strong emphasis I I
* DFN instance definition I I
* CODE computer code fragment I I
* SAMP sample program output, scripts,etc. I I
* KBD text to be entered by the user I I
* VAR instance of a variable or programargument I I
* CITE citation I I
* Q short inline quotation I I
* SUB subscript*6 I I
* SUP superscript*6 I I
* BLOCKQUOTE long quotation B B
* PRE preformatted text B I*2
* DEL deleted text B B*3
* INS inserted text B B*3
* BR F E forced line break I
*2
img, object, sup sub は除く
*3
インライン要素として振る舞っている場合はインライン要素
*4
単語として発音できない省略形。IEは未対応
*5
単語として発音できる省略形
*6
テキストブラウザや、音声ブラウザでは適切に表現されない場合がある

Lists

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
* UL unordered list B li
* OL ordered list B li
* DL definition list B dt, dd
* LI O list item Lists F R*7
* DT O definition term Lists I R*8
* DD O definition description Lists F R*8
*7
ul、olには必ず１つ含まなければならない
*8
dlには、dtかddをどちらか必ず１つ含まなければならない

Image and Link

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
IMG F E Embedded image I
MAP client-side image map B, area
AREA F E client-side image map area
OBJECT generic embedded object I param, F
PARAM F E named property value
A anchor I I

Table

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
TABLE B *1
CAPTION table caption Table I O
COLGROUP table column group Table col
COL F E table column Table
THEAD O table header Table tr O
TFOOT O table footer Table tr O
TBODY O O table body Table tr
TR O table row Table th, td
TH O table header cell Table F
TD O table data cell Table F
*1
caption, col, colgrounp, tbody, tfoot, thead, (tr)

Form

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
FORM interactive form B B
FIELDSET form control group Form/B F
LEGEND fieldset legend Form I *4
INPUT F E form control Form/I
BUTTON push button Form/I F*5
SELECT option selector Form/I *6
OPTGROUP Form option
OPTION O selectable choice Form TEXT
TEXTAREA multi-line text field Form/I TEXT
LABEL form field label text Form/I
*4
入れる場合Fieldset の先頭
*5
button、fieldset、form、iframe、isindex、input、label、select、textarea以外のほとんどの要素
*6
optgroup, option

Others

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
SCRIPT script statements SCRIPT
NOSCRIPT alternate content container for non script-based rendering B
HR F E horizontal rule B
BDO I18N BiDi over-ride I I

HTML4.01 / STRICT::

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

非推奨ではないがスタイルシートによる定義を推奨しているもの

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
B bold text style I
BIG large text style I
I italic text style I
SMALL small text style I
TT teletype or monospaced text style I

HTML4.01 / TRANSITIONAL::

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

URLを省略すると互換モードで表示される（場合が多い）

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I contain required
IFRAME inline subwindow

HTML4.01 / TRANSITIONAL::Deprecated,

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

URLを省略すると互換モードで表示される（場合が多い）

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
APPLET Java applet
BASEFONT F E base font size
CENTER shorthand for DIV align=center
DIR directory list
FONT local change to font
ISINDEX F E single line prompt
MENU menu list
S strike-through text style
STRIKE strike-through text
U underlined text style

HTML4.01 / FRAMESET::

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">

Legend: Optional, Forbidden, Empty, Inline, Blocklevel, Flow, Required

Name Start End Empty Description B/I Contain required
FRAME F E subwindow
FRAMESET window subdivision
NOFRAMES alternate content container for non frame-based rendering