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1 <!--
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2 W3C Document Type Definition for the HyperText Markup Language
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3 This version is code named Wilbur, and also as "HTML 3.2".
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4
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5 Draft: Tuesday 21-May-96
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6
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7 Author: Dave Raggett <dsr@w3.org>
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8
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9 This is subject to change, pending final approval by the W3C
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10 member companies.
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11
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12 HTML 3.2 aims to capture recommended practice as of early '96
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13 and as such to be used as a replacement for HTML 2.0 (RFC 1866).
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14 Widely deployed rendering attributes are included where they
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15 have been shown to be interoperable. SCRIPT and STYLE are
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16 included to smooth the introduction of client-side scripts
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17 and style sheets. Browsers must avoid showing the contents
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18 of these element Otherwise support for them is not required.
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19 ID, CLASS and STYLE attributes are not included in this version
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20 of HTML.
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21
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22 The next version of HTML after Wilbur is code named Cougar and
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23 will add support for <OBJECT>, client-side scripting, style
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24 sheets, and extensions to fill-out forms.
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25 -->
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26
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27 <!ENTITY % HTML.Version
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28 "-//W3C//DTD HTML 3.2//EN"
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29
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30 -- Typical usage:
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31
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32 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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33 <html>
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34 ...
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35 </html>
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36 --
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37 >
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38
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39 <!--================== Deprecated Features Switch =========================-->
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40
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41 <!ENTITY % HTML.Deprecated "INCLUDE">
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42
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43 <!--================== Imported Names =====================================-->
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44
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45 <!ENTITY % Content-Type "CDATA"
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46 -- meaning a MIME content type, as per RFC1521
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47 -->
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48
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49 <!ENTITY % HTTP-Method "GET | POST"
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50 -- as per HTTP specification
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51 -->
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52
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53 <!ENTITY % URL "CDATA"
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54 -- The term URL means a CDATA attribute
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55 whose value is a Uniform Resource Locator,
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56 See RFC1808 (June 95) and RFC1738 (Dec 94).
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57 -->
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58
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59 <!-- Parameter Entities -->
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60
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61 <!ENTITY % head.misc "SCRIPT|STYLE|META|LINK" -- repeatable head elements -->
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62
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63 <!ENTITY % heading "H1|H2|H3|H4|H5|H6">
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64
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65 <!ENTITY % list "UL | OL | DIR | MENU">
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66
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67 <![ %HTML.Deprecated [
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68 <!ENTITY % preformatted "PRE | XMP | LISTING">
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69 ]]>
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70
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71 <!ENTITY % preformatted "PRE">
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72
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73 <!--================ Character mnemonic entities ==========================-->
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74
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75 <!ENTITY % ISOlat1 PUBLIC
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76 "ISO 8879-1986//ENTITIES Added Latin 1//EN//HTML">
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77 %ISOlat1;
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78
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79 <!--================ Entities for special symbols =========================-->
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80 <!-- &trade ­ and &cbsp are not widely deployed and so not included here -->
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81
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82 <!ENTITY copy CDATA "©" -- copyright sign -->
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83 <!ENTITY reg CDATA "®" -- registered sign -->
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84 <!ENTITY amp CDATA "&" -- ampersand -->
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85 <!ENTITY gt CDATA ">" -- greater than -->
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86 <!ENTITY lt CDATA "<" -- less than -->
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87 <!ENTITY quot CDATA """ -- double quote -->
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88 <!ENTITY nbsp CDATA " " -- non breaking space -->
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89
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90 <!--=================== Text Markup =======================================-->
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91
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92 <!ENTITY % font "TT | I | B | STRIKE | BIG | SMALL | SUB | SUP">
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93
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94 <!ENTITY % phrase "EM | STRONG | DFN | CODE | SAMP | KBD | VAR | CITE">
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95
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96 <!ENTITY % special "A | IMG | APPLET | FONT | BR | SCRIPT | MAP">
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97
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98 <!ENTITY % form "INPUT | SELECT | TEXTAREA">
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99
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100 <!ENTITY % text "#PCDATA | %font | %phrase | %special | %form">
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101
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102 <!ELEMENT (%font|%phrase) - - (%text)*>
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103
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104 <!-- there are also 16 widely known color names although
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105 the resulting colors are implementation dependent:
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106
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107 aqua, black, blue, fuchsia, gray, green, lime, maroon,
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108 navy, olive, purple, red, silver, teal, white, and yellow
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109
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110 These colors were originally picked as being the standard
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111 16 colors supported with the Windows VGA palette.
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112 -->
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113
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114 <!ELEMENT FONT - - (%text)* -- local change to font -->
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115 <!ATTLIST FONT
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116 size CDATA #IMPLIED -- [+]nn e.g. size="+1", size=4 --
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117 color CDATA #IMPLIED -- #RRGGBB in hex, e.g. red: color="#FF0000" --
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118 >
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119
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120 <!ELEMENT BR - O EMPTY -- forced line break -->
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121 <!ATTLIST BR
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122 clear (left|all|right|none) none -- control of text flow --
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123 >
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124
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125 <!--================== HTML content models ================================-->
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126 <!--
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127 HTML has three basic content models:
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128
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129 %text character level elements and text strings
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130 %flow block-like elements e.g. paragraphs and lists
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131 %bodytext as (b) plus headers and ADDRESS
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132 -->
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133
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134 <!ENTITY % block
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135 "P | %list | %preformatted | DL | DIV | CENTER |
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136 BLOCKQUOTE | FORM | ISINDEX | HR | TABLE">
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137
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138 <!-- %flow is used for DD and LI -->
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139
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140 <!ENTITY % flow "(%text | %block)*">
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141
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142 <!--=================== Document Body =====================================-->
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143
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144 <!ENTITY % body.content "(%heading | %text | %block | ADDRESS)*">
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145
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146 <!ENTITY % color "CDATA" -- a color specification: #HHHHHH @@ details? -->
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147
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148 <!ENTITY % body-color-attrs "
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149 bgcolor %color #IMPLIED
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150 text %color #IMPLIED
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151 link %color #IMPLIED
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152 vlink %color #IMPLIED
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153 alink %color #IMPLIED
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154 ">
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155
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156 <!ELEMENT BODY O O %body.content>
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157 <!ATTLIST BODY
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158 background %URL #IMPLIED -- texture tile for document background --
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159 %body-color-attrs; -- bgcolor, text, link, vlink, alink --
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160 >
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161
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162 <!ENTITY % address.content "((%text;) | P)*">
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163
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164 <!ELEMENT ADDRESS - - %address.content>
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165
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166 <!ELEMENT DIV - - %body.content>
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167 <!ATTLIST DIV
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168 align (left|center|right) left -- alignment of following text --
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169 >
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170
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171 <!-- CENTER is a shorthand for DIV with ALIGN=CENTER -->
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172 <!ELEMENT center - - %body.content>
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173
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174 <!--================== The Anchor Element =================================-->
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175
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176 <!ELEMENT A - - (%text)* -(A)>
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177 <!ATTLIST A
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178 name CDATA #IMPLIED -- named link end --
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179 href %URL #IMPLIED -- URL for linked resource --
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180 rel CDATA #IMPLIED -- forward link types --
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181 rev CDATA #IMPLIED -- reverse link types --
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182 title CDATA #IMPLIED -- advisory title string --
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183 >
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184
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185 <!--================== Client-side image maps ============================-->
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186
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187 <!-- These can be placed in the same document or grouped in a
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188 separate document although this isn't yet widely supported -->
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189
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190 <!ENTITY % SHAPE "(rect|circle|poly|default)">
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191 <!ENTITY % COORDS "CDATA" -- comma separated list of numbers -->
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192
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193 <!ELEMENT MAP - - (AREA)*>
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194 <!ATTLIST MAP
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195 name CDATA #IMPLIED
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196 >
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197
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198 <!ELEMENT AREA - O EMPTY>
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199 <!ATTLIST AREA
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200 shape %SHAPE rect
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201 coords %COORDS #IMPLIED -- always needed except for shape=default --
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202 href %URL #IMPLIED -- this region acts as hypertext link --
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203 nohref (nohref) #IMPLIED -- this region has no action --
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204 alt CDATA #REQUIRED
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205 >
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206
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207 <!--================== The LINK Element ==================================-->
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208
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209 <!ENTITY % Types "CDATA"
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210 -- See Internet Draft: draft-ietf-html-relrev-00.txt
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211 LINK has been part of HTML since the early days
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212 although few browsers as yet take advantage of it.
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213
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214 Relationship values can be used in principle:
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215
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216 a) for document specific toolbars/menus when used
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217 with the LINK element in document head:
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218 b) to link to a separate style sheet (rel=stylesheet)
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219 c) to make a link to a script (rel=script)
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220 d) by stylesheets to control how collections of
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221 html nodes are rendered into printed documents
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222 e) to make a link to a printable version of this document
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223 e.g. a postscript or pdf version (rel=print)
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224 -->
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225
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226 <!ELEMENT LINK - O EMPTY>
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227 <!ATTLIST LINK
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228 id ID #IMPLIED -- SGML ID attribute --
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229 href %URL #IMPLIED -- URL for linked resource --
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230 rel %Types #IMPLIED -- forward link types --
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231 rev %Types #IMPLIED -- reverse link types --
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232 title CDATA #IMPLIED -- advisory title string --
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233 >
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234
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235 <!--=================== Images ============================================-->
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236
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237 <!ENTITY % Length "CDATA" -- nn for pixels or nn% for percentage length -->
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238 <!ENTITY % Pixels "CDATA" -- integer representing length in pixels -->
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239
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240 <!-- Suggested widths are used for negotiating image size
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241 with the module responsible for painting the image.
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242 align=left or right cause image to float to margin
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243 and for subsequent text to wrap around image -->
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244
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245 <!ENTITY % IAlign "(top|middle|bottom|left|right)">
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246
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247 <!ELEMENT IMG - O EMPTY -- Embedded image -->
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248 <!ATTLIST IMG
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249 src %URL #REQUIRED -- URL of image to embed --
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250 alt CDATA #IMPLIED -- for display in place of image --
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251 align %IAlign #IMPLIED -- vertical or horizontal alignment --
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252 height %Pixels #IMPLIED -- suggested height in pixels --
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253 width %Pixels #IMPLIED -- suggested width in pixels --
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254 border %Pixels #IMPLIED -- suggested link border width --
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255 hspace %Pixels #IMPLIED -- suggested horizontal gutter --
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256 vspace %Pixels #IMPLIED -- suggested vertical gutter --
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257 usemap %URL #IMPLIED -- use client-side image map --
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258 ismap (ismap) #IMPLIED -- use server image map --
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259 >
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260
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261 <!-- USEMAP points to a MAP element which may be in this document
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262 or an external document, although the latter is not widely supported -->
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263
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264 <!--=================== Java APPLET tag ===================================-->
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265 <!--
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266 This tag is supported by all java enabled browsers. Applet resources
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267 (including their classes) are normally loaded relative to the document
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268 URL (or <BASE> element if it is defined). The CODEBASE attribute is used
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269 to change this default behavior. If the CODEBASE attribute is defined then
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270 it specifies a different location to find applet resources. The value
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271 can be an absolute URL or a relative URL. The absolute URL is used as is
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272 without modification and is not effected by the documents <BASE> element.
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273 When the codebase attribute is relative, then it is relative to the
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274 document URL (or <BASE> tag if defined). <TEXTFLOW> avoids the problems
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275 with SGML mixed content. It can always be omitted *except* when the APPLET
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276 element hasn't any content. White space, comments and PARAM elements
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277 don't count as content for this purpose. TEXTFLOW was introduced into
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278 the DTD to satisfy SGML parsers, but is ignored by current Web browsers.
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279 -->
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280 <!ELEMENT APPLET - - (PARAM*, TEXTFLOW)>
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281 <!ATTLIST APPLET
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282 codebase %URL #IMPLIED -- code base --
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283 code CDATA #REQUIRED -- class file --
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284 name CDATA #IMPLIED -- applet name --
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285 alt CDATA #IMPLIED -- for display in place of applet --
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286 align %IAlign #IMPLIED -- vertical or horizontal alignment --
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287 height %Pixels #REQUIRED -- suggested height in pixels --
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288 width %Pixels #REQUIRED -- suggested width in pixels --
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289 hspace %Pixels #IMPLIED -- suggested horizontal gutter --
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290 vspace %Pixels #IMPLIED -- suggested vertical gutter --
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291 >
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292
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293 <!ELEMENT PARAM - O EMPTY>
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294 <!ATTLIST PARAM
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295 name NAME #REQUIRED -- The name of the parameter --
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296 value CDATA #IMPLIED -- The value of the parameter --
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297 >
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298 <!ELEMENT TEXTFLOW O O (%text)* -- needed to bypass mixed content model -->
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299
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300 <!--
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301 Here is an example:
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302
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303 <applet codebase="applets/NervousText"
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304 code=NervousText.class
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305 width=300
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306 height=50>
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307 <param name=text value="Java is Cool!">
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308 <img src=sorry.gif alt="This looks better with Java support">
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309 </applet>
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310 -->
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311
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312 <!--=================== Horizontal Rule ===================================-->
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313
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314 <!ELEMENT HR - O EMPTY>
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315 <!ATTLIST HR
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316 align (left|right|center) #IMPLIED
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317 noshade (noshade) #IMPLIED
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318 size %Pixels #IMPLIED
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319 width %Length #IMPLIED
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320 >
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321 <!--=================== Paragraphs=========================================-->
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322
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323 <!ELEMENT P - O (%text)*>
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324 <!ATTLIST P
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325 align (left|center|right) #IMPLIED
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326 >
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327
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328 <!--=================== Headings ==========================================-->
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329
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330 <!--
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331 There are six levels of headers from H1 (the most important)
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332 to H6 (the least important).
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333 -->
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334
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335 <!ELEMENT ( %heading ) - - (%text;)*>
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336 <!ATTLIST ( %heading )
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337 align (left|center|right) #IMPLIED
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338 >
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339
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340 <!--=================== Preformatted Text =================================-->
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341
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342 <!-- excludes images and changes in font size -->
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343
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344 <!ENTITY % pre.exclusion "IMG|BIG|SMALL|SUB|SUP|FONT">
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345
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346 <!ELEMENT PRE - - (%text)* -(%pre.exclusion)>
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347 <!ATTLIST PRE
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348 width NUMBER #implied -- is this widely supported? --
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349 >
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350
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351 <![ %HTML.Deprecated [
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352
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353 <!ENTITY % literal "CDATA"
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354 -- historical, non-conforming parsing mode where
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355 the only markup signal is the end tag
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356 in full
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357 -->
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358
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359 <!ELEMENT (XMP|LISTING) - - %literal>
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360 <!ELEMENT PLAINTEXT - O %literal>
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361
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362 ]]>
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363
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364 <!--=================== Block-like Quotes =================================-->
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365
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366 <!ELEMENT BLOCKQUOTE - - %body.content>
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367
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368 <!--=================== Lists =============================================-->
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369
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370 <!--
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371 HTML 3.2 allows you to control the sequence number for ordered lists.
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372 You can set the sequence number with the START and VALUE attributes.
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373 The TYPE attribute may be used to specify the rendering of ordered
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374 and unordered lists.
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375 -->
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376
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377 <!-- definition lists - DT for term, DD for its definition -->
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378
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379 <!ELEMENT DL - - (DT|DD)*>
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380 <!ATTLIST DL
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381 compact (compact) #IMPLIED -- more compact style --
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382 >
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383
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384 <!ELEMENT DT - O (%text)*>
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385 <!ELEMENT DD - O %flow;>
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386
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387 <!-- Ordered lists OL, and unordered lists UL -->
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388 <!ELEMENT (OL|UL) - - (LI)*>
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389
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390 <!--
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391 Numbering style
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392 1 arablic numbers 1, 2, 3, ...
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393 a lower alpha a, b, c, ...
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394 A upper alpha A, B, C, ...
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395 i lower roman i, ii, iii, ...
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396 I upper roman I, II, III, ...
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397
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398 The style is applied to the sequence number which by default
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399 is reset to 1 for the first list item in an ordered list.
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400
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401 This can't be expressed directly in SGML due to case folding.
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402 -->
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403
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404 <!ENTITY % OLStyle "CDATA" -- constrained to: [1|a|A|i|I] -->
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405
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406 <!ATTLIST OL -- ordered lists --
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407 type %OLStyle #IMPLIED -- numbering style --
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408 start NUMBER #IMPLIED -- starting sequence number --
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409 compact (compact) #IMPLIED -- reduced interitem spacing --
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410 >
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411
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412 <!-- bullet styles -->
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413
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414 <!ENTITY % ULStyle "disc|square|circle">
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415
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416 <!ATTLIST UL -- unordered lists --
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417 type (%ULStyle) #IMPLIED -- bullet style --
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418 compact (compact) #IMPLIED -- reduced interitem spacing --
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419 >
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420
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421 <!ELEMENT (DIR|MENU) - - (LI)* -(%block)>
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422 <!ATTLIST DIR
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423 compact (compact) #IMPLIED
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424 >
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425 <!ATTLIST MENU
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426 compact (compact) #IMPLIED
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427 >
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428
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429 <!-- <DIR> Directory list -->
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430 <!-- <DIR COMPACT> Compact list style -->
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431 <!-- <MENU> Menu list -->
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432 <!-- <MENU COMPACT> Compact list style -->
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433
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434 <!-- The type attribute can be used to change the bullet style
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435 in unordered lists and the numbering style in ordered lists -->
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436
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437 <!ENTITY % LIStyle "CDATA" -- constrained to: "(%ULStyle|%OLStyle)" -->
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438
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439 <!ELEMENT LI - O %flow -- list item -->
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440 <!ATTLIST LI
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441 type %LIStyle #IMPLIED -- list item style --
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442 value NUMBER #IMPLIED -- reset sequence number --
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443 >
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444
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445 <!--================ Forms ===============================================-->
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446
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447 <!ELEMENT FORM - - %body.content -(FORM)>
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448 <!ATTLIST FORM
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449 action %URL #REQUIRED -- server-side form handler --
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450 method (%HTTP-Method) GET -- see HTTP specification --
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451 enctype %Content-Type; "application/x-www-form-urlencoded"
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452 >
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453
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454 <!ENTITY % InputType
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455 "(TEXT | PASSWORD | CHECKBOX | RADIO | SUBMIT
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456 | RESET | FILE | HIDDEN | IMAGE)">
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457
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458 <!ELEMENT INPUT - O EMPTY>
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459 <!ATTLIST INPUT
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460 type %InputType TEXT -- what kind of widget is needed --
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461 name CDATA #IMPLIED -- required for all but submit and reset --
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462 value CDATA #IMPLIED -- required for radio and checkboxes --
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463 checked (checked) #IMPLIED -- for radio buttons and check boxes --
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464 size CDATA #IMPLIED -- specific to each type of field --
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465 maxlength NUMBER #IMPLIED
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466 src %URL #IMPLIED -- for fields with background images --
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467 align (top|middle|bottom|left|right) top -- image alignment --
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468 >
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469
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470 <!ELEMENT SELECT - - (OPTION+)>
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471 <!ATTLIST SELECT
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472 name CDATA #REQUIRED
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473 size NUMBER #IMPLIED
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474 multiple (multiple) #IMPLIED
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475 >
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476
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477 <!ELEMENT OPTION - O (#PCDATA)*>
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478 <!ATTLIST OPTION
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479 selected (selected) #IMPLIED
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480 value CDATA #IMPLIED -- defaults to element content --
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481 >
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482
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483 <!-- Multi-line text input field. -->
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484
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485 <!ELEMENT TEXTAREA - - (#PCDATA)*>
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486 <!ATTLIST TEXTAREA
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487 name CDATA #REQUIRED
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488 rows NUMBER #REQUIRED
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489 cols NUMBER #REQUIRED
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490 >
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491
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492 <!--======================= Tables ========================================-->
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493
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494 <!-- Widely deployed subset of the full table standard, see RFC XXXX -->
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495
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496 <!-- horizontal placement of table relative to window -->
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497 <!ENTITY % Where "(left|center|right)">
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498
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499 <!-- horizontal alignment attributes for cell contents -->
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500 <!ENTITY % cell.halign
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501 "align (left|center|right) #IMPLIED"
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502 >
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503
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504 <!-- vertical alignment attributes for cell contents -->
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505 <!ENTITY % cell.valign
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506 "valign (top|middle|bottom|baseline) #IMPLIED"
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507 >
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508
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509 <!ELEMENT table - - (caption?, tr+)>
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510 <!ELEMENT tr - O (th|td)*>
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511 <!ELEMENT (th|td) - O %body.content>
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512
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513 <!ATTLIST table -- table element --
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514 align %Where; #IMPLIED -- table position relative to window --
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515 width %Length #IMPLIED -- table width relative to window --
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516 border %Pixels #IMPLIED -- controls frame width around table --
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|
517 cellspacing %Pixels #IMPLIED -- spacing between cells --
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518 cellpadding %Pixels #IMPLIED -- spacing within cells --
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519 >
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520
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521 <!ELEMENT CAPTION - - (%text;)* -- table or figure caption -->
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|
522 <!ATTLIST CAPTION
|
|
|
523 align (top|bottom) #IMPLIED
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524 >
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525
|
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|
526 <!ATTLIST tr -- table row --
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|
527 %cell.halign; -- horizontal alignment in cells --
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528 %cell.valign; -- vertical alignment in cells --
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529 >
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530
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|
531 <!ATTLIST (th|td) -- header or data cell --
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|
532 nowrap (nowrap) #IMPLIED -- suppress word wrap --
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533 rowspan NUMBER 1 -- number of rows spanned by cell --
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534 colspan NUMBER 1 -- number of cols spanned by cell --
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|
|
535 %cell.halign; -- horizontal alignment in cells --
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|
|
536 %cell.valign; -- vertical alignment in cells --
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|
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537 >
|
|
|
538
|
|
|
539 <!--================ Document Head ========================================-->
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|
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540
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|
|
541 <!-- %head.misc defined earlier on as "SCRIPT|STYLE|META|LINK" -->
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542
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|
543 <!ENTITY % head.content "TITLE & ISINDEX? & BASE?">
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544
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545 <!ELEMENT HEAD O O (%head.content) +(%head.misc)>
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546
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547 <!ELEMENT TITLE - - (#PCDATA)* -(%head.misc)
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|
548 -- The TITLE element is not considered part of the flow of text.
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|
549 It should be displayed, for example as the page header or
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550 window title.
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551 -->
|
|
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552
|
|
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553 <!ELEMENT ISINDEX - O EMPTY>
|
|
|
554 <!ATTLIST ISINDEX
|
|
|
555 prompt CDATA #IMPLIED -- prompt message -->
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|
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556
|
|
|
557 <!--
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|
|
558 The BASE element gives an absolute URL for dereferencing relative
|
|
|
559 URLs, e.g.
|
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560
|
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|
561 <BASE href="http://foo.com/index.html">
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|
|
562 ...
|
|
|
563 <IMG SRC="images/bar.gif">
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|
564
|
|
|
565 The image is deferenced to
|
|
|
566
|
|
|
567 http://foo.com/images/bar.gif
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|
|
568
|
|
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569 In the absence of a BASE element the document URL should be used.
|
|
|
570 Note that this is not necessarily the same as the URL used to
|
|
|
571 request the document, as the base URL may be overridden by an HTTP
|
|
|
572 header accompanying the document.
|
|
|
573 -->
|
|
|
574
|
|
|
575 <!ELEMENT BASE - O EMPTY>
|
|
|
576 <!ATTLIST BASE
|
|
|
577 href %URL #REQUIRED
|
|
|
578 >
|
|
|
579
|
|
|
580 <!ELEMENT META - O EMPTY -- Generic Metainformation -->
|
|
|
581 <!ATTLIST META
|
|
|
582 http-equiv NAME #IMPLIED -- HTTP response header name --
|
|
|
583 name NAME #IMPLIED -- metainformation name --
|
|
|
584 content CDATA #REQUIRED -- associated information --
|
|
|
585 >
|
|
|
586
|
|
|
587 <!-- SCRIPT/STYLE are place holders for transition to next version of HTML -->
|
|
|
588
|
|
|
589 <!ELEMENT STYLE - - (#PCDATA)* -(%head.misc) -- style info -->
|
|
|
590 <!ELEMENT SCRIPT - - (#PCDATA)* -(%head.misc) -- script statements -->
|
|
|
591
|
|
|
592 <!--================ Document Structure ===================================-->
|
|
|
593
|
|
|
594 <!ENTITY % version.attr "VERSION CDATA #FIXED '%HTML.Version;'">
|
|
|
595
|
|
|
596 <!ELEMENT HTML O O (HEAD, BODY)>
|
|
|
597 <!ATTLIST HTML
|
|
|
598 %version.attr;
|
|
|
599 >
|
