📄 strict.dtd
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name CDATA #IMPLIED -- field name -- size NUMBER #IMPLIED -- rows visible -- multiple (multiple) #IMPLIED -- default is single selection -- disabled (disabled) #IMPLIED -- unavailable in this context -- tabindex NUMBER #IMPLIED -- position in tabbing order -- onfocus %Script; #IMPLIED -- the element got the focus -- onblur %Script; #IMPLIED -- the element lost the focus -- onchange %Script; #IMPLIED -- the element value was changed -- %reserved; -- reserved for possible future use -- ><!ELEMENT OPTGROUP - - (OPTION)+ -- option group --><!ATTLIST OPTGROUP %attrs; -- %coreattrs, %i18n, %events -- disabled (disabled) #IMPLIED -- unavailable in this context -- label %Text; #REQUIRED -- for use in hierarchical menus -- ><!ELEMENT OPTION - O (#PCDATA) -- selectable choice --><!ATTLIST OPTION %attrs; -- %coreattrs, %i18n, %events -- selected (selected) #IMPLIED disabled (disabled) #IMPLIED -- unavailable in this context -- label %Text; #IMPLIED -- for use in hierarchical menus -- value CDATA #IMPLIED -- defaults to element content -- ><!ELEMENT TEXTAREA - - (#PCDATA) -- multi-line text field --><!ATTLIST TEXTAREA %attrs; -- %coreattrs, %i18n, %events -- name CDATA #IMPLIED rows NUMBER #REQUIRED cols NUMBER #REQUIRED disabled (disabled) #IMPLIED -- unavailable in this context -- readonly (readonly) #IMPLIED tabindex NUMBER #IMPLIED -- position in tabbing order -- accesskey %Character; #IMPLIED -- accessibility key character -- onfocus %Script; #IMPLIED -- the element got the focus -- onblur %Script; #IMPLIED -- the element lost the focus -- onselect %Script; #IMPLIED -- some text was selected -- onchange %Script; #IMPLIED -- the element value was changed -- %reserved; -- reserved for possible future use -- ><!-- #PCDATA is to solve the mixed content problem, per specification only whitespace is allowed there! --><!ELEMENT FIELDSET - - (#PCDATA,LEGEND,(%flow;)*) -- form control group --><!ATTLIST FIELDSET %attrs; -- %coreattrs, %i18n, %events -- ><!ELEMENT LEGEND - - (%inline;)* -- fieldset legend --><!ENTITY % LAlign "(top|bottom|left|right)"><!ATTLIST LEGEND %attrs; -- %coreattrs, %i18n, %events -- accesskey %Character; #IMPLIED -- accessibility key character -- ><!ELEMENT BUTTON - - (%flow;)* -(A|%formctrl;|FORM|FIELDSET) -- push button --><!ATTLIST BUTTON %attrs; -- %coreattrs, %i18n, %events -- name CDATA #IMPLIED value CDATA #IMPLIED -- sent to server when submitted -- type (button|submit|reset) submit -- for use as form button -- disabled (disabled) #IMPLIED -- unavailable in this context -- tabindex NUMBER #IMPLIED -- position in tabbing order -- accesskey %Character; #IMPLIED -- accessibility key character -- onfocus %Script; #IMPLIED -- the element got the focus -- onblur %Script; #IMPLIED -- the element lost the focus -- %reserved; -- reserved for possible future use -- ><!--======================= Tables =======================================--><!-- IETF HTML table standard, see [RFC1942] --><!-- The BORDER attribute sets the thickness of the frame around the table. The default units are screen pixels. The FRAME attribute specifies which parts of the frame around the table should be rendered. The values are not the same as CALS to avoid a name clash with the VALIGN attribute. The value "border" is included for backwards compatibility with <TABLE BORDER> which yields frame=border and border=implied For <TABLE BORDER=1> you get border=1 and frame=implied. In this case, it is appropriate to treat this as frame=border for backwards compatibility with deployed browsers.--><!ENTITY % TFrame "(void|above|below|hsides|lhs|rhs|vsides|box|border)"><!-- The RULES attribute defines which rules to draw between cells: If RULES is absent then assume: "none" if BORDER is absent or BORDER=0 otherwise "all"--><!ENTITY % TRules "(none | groups | rows | cols | all)"> <!-- horizontal placement of table relative to document --><!ENTITY % TAlign "(left|center|right)"><!-- horizontal alignment attributes for cell contents --><!ENTITY % cellhalign "align (left|center|right|justify|char) #IMPLIED char %Character; #IMPLIED -- alignment char, e.g. char=':' -- charoff %Length; #IMPLIED -- offset for alignment char --" ><!-- vertical alignment attributes for cell contents --><!ENTITY % cellvalign "valign (top|middle|bottom|baseline) #IMPLIED" ><!ELEMENT TABLE - - (CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)><!ELEMENT CAPTION - - (%inline;)* -- table caption --><!ELEMENT THEAD - O (TR)+ -- table header --><!ELEMENT TFOOT - O (TR)+ -- table footer --><!ELEMENT TBODY O O (TR)+ -- table body --><!ELEMENT COLGROUP - O (col)* -- table column group --><!ELEMENT COL - O EMPTY -- table column --><!ELEMENT TR - O (TH|TD)+ -- table row --><!ELEMENT (TH|TD) - O (%flow;)* -- table header cell, table data cell--><!ATTLIST TABLE -- table element -- %attrs; -- %coreattrs, %i18n, %events -- summary %Text; #IMPLIED -- purpose/structure for speech output-- width %Length; #IMPLIED -- table width -- border %Pixels; #IMPLIED -- controls frame width around table -- frame %TFrame; #IMPLIED -- which parts of frame to render -- rules %TRules; #IMPLIED -- rulings between rows and cols -- cellspacing %Length; #IMPLIED -- spacing between cells -- cellpadding %Length; #IMPLIED -- spacing within cells -- %reserved; -- reserved for possible future use -- datapagesize CDATA #IMPLIED -- reserved for possible future use -- ><!ENTITY % CAlign "(top|bottom|left|right)"><!ATTLIST CAPTION %attrs; -- %coreattrs, %i18n, %events -- ><!--COLGROUP groups a set of COL elements. It allows you to groupseveral semantically related columns together.--><!ATTLIST COLGROUP %attrs; -- %coreattrs, %i18n, %events -- span NUMBER 1 -- default number of columns in group -- width %MultiLength; #IMPLIED -- default width for enclosed COLs -- %cellhalign; -- horizontal alignment in cells -- %cellvalign; -- vertical alignment in cells -- ><!-- COL elements define the alignment properties for cells in one or more columns. The WIDTH attribute specifies the width of the columns, e.g. width=64 width in screen pixels width=0.5* relative width of 0.5 The SPAN attribute causes the attributes of one COL element to apply to more than one column.--><!ATTLIST COL -- column groups and properties -- %attrs; -- %coreattrs, %i18n, %events -- span NUMBER 1 -- COL attributes affect N columns -- width %MultiLength; #IMPLIED -- column width specification -- %cellhalign; -- horizontal alignment in cells -- %cellvalign; -- vertical alignment in cells -- ><!-- Use THEAD to duplicate headers when breaking table across page boundaries, or for static headers when TBODY sections are rendered in scrolling panel. Use TFOOT to duplicate footers when breaking table across page boundaries, or for static footers when TBODY sections are rendered in scrolling panel. Use multiple TBODY sections when rules are needed between groups of table rows.--><!ATTLIST (THEAD|TBODY|TFOOT) -- table section -- %attrs; -- %coreattrs, %i18n, %events -- %cellhalign; -- horizontal alignment in cells -- %cellvalign; -- vertical alignment in cells -- ><!ATTLIST TR -- table row -- %attrs; -- %coreattrs, %i18n, %events -- %cellhalign; -- horizontal alignment in cells -- %cellvalign; -- vertical alignment in cells -- ><!-- Scope is simpler than axes attribute for common tables --><!ENTITY % Scope "(row|col|rowgroup|colgroup)"><!-- TH is for headers, TD for data, but for cells acting as both use TD --><!ATTLIST (TH|TD) -- header or data cell -- %attrs; -- %coreattrs, %i18n, %events -- abbr %Text; #IMPLIED -- abbreviation for header cell -- axis CDATA #IMPLIED -- names groups of related headers-- headers IDREFS #IMPLIED -- list of id's for header cells -- scope %Scope; #IMPLIED -- scope covered by header cells -- rowspan NUMBER 1 -- number of rows spanned by cell -- colspan NUMBER 1 -- number of cols spanned by cell -- %cellhalign; -- horizontal alignment in cells -- %cellvalign; -- vertical alignment in cells -- ><!--================ Document Head =======================================--><!-- %head.misc; defined earlier on as "SCRIPT|STYLE|META|LINK|OBJECT" --><!ENTITY % head.content "TITLE & BASE?"><!ELEMENT HEAD O O (%head.content;) +(%head.misc;) -- document head --><!ATTLIST HEAD %i18n; -- lang, dir -- profile %URI; #IMPLIED -- named dictionary of meta info -- ><!-- The TITLE element is not considered part of the flow of text. It should be displayed, for example as the page header or window title. Exactly one title is required per document. --><!ELEMENT TITLE - - (#PCDATA) -(%head.misc;) -- document title --><!ATTLIST TITLE %i18n><!ELEMENT BASE - O EMPTY -- document base URI --><!ATTLIST BASE href %URI; #REQUIRED -- URI that acts as base URI -- ><!ELEMENT META - O EMPTY -- generic metainformation --><!ATTLIST META %i18n; -- lang, dir, for use with content -- http-equiv NAME #IMPLIED -- HTTP response header name -- name NAME #IMPLIED -- metainformation name -- content CDATA #REQUIRED -- associated information -- scheme CDATA #IMPLIED -- select form of content -- ><!ELEMENT STYLE - - %StyleSheet -- style info --><!ATTLIST STYLE %i18n; -- lang, dir, for use with title -- type %ContentType; #REQUIRED -- content type of style language -- media %MediaDesc; #IMPLIED -- designed for use with these media -- title %Text; #IMPLIED -- advisory title -- ><!ELEMENT SCRIPT - - %Script; -- script statements --><!ATTLIST SCRIPT charset %Charset; #IMPLIED -- char encoding of linked resource -- type %ContentType; #REQUIRED -- content type of script language -- src %URI; #IMPLIED -- URI for an external script -- defer (defer) #IMPLIED -- UA may defer execution of script -- event CDATA #IMPLIED -- reserved for possible future use -- for %URI; #IMPLIED -- reserved for possible future use -- ><!ELEMENT NOSCRIPT - - (%block;)+ -- alternate content container for non script-based rendering --><!ATTLIST NOSCRIPT %attrs; -- %coreattrs, %i18n, %events -- ><!--================ Document Structure ==================================--><!ENTITY % html.content "HEAD, BODY"><!ELEMENT HTML O O (%html.content;) -- document root element --><!ATTLIST HTML %i18n; -- lang, dir -- >⌨️ 快捷键说明
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