The rules are in alphabetical order. The starting rule for an 
entire document is named html_document.
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a_content 
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::= 
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heading 
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text 
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a_tag 
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::= 
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<a> 
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{a_content}0 
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</a> 
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abbr_tag 
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::= 
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<abbr> text 
</abbr> 
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acronym_tag 
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::= 
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<acronym> text 
</acronym> 
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address_content 
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::= 
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p_tag 
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text 
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address_tag 
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::= 
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<address> 
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{address_content}0 
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</address> 
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applet_content 
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::= 
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{<param>}0 
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body_content 
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applet_tag 
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::= 
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<applet> applet_content </applet> 
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b_tag 
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::= 
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<b> text 
</b> 
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basefont_tag 
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::= 
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<basefont> body_content </basefont> 
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bdo_tag 
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::= 
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<bdo> text 
</bdo> 
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big_tag 
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::= 
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<big> text 
</big> 
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blink_tag 
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::= 
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<blink> text 
</blink> 
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block 
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::= 
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{block_content}0 
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block_content 
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::= 
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<isindex> 
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basefont_tag 
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blockquote_tag 
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center_tag 
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dir_tag 
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div_tag 
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dl_tag 
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form_tag 
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listing_tag 
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menu_tag 
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multicol_tag 
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nobr_tag 
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ol_tag 
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p_tag 
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pre_tag 
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table_tag 
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ul_tag 
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xmp_tag 
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blockquote_tag 
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::= 
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<blockquote> body_content </blockquote> 
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body_content 
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::= 
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<bgsound> 
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<hr> 
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address_tag 
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block 
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del_tag 
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heading 
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ins_tag 
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layer_tag 
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map_tag 
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marquee_tag 
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text 
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body_tag 
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::= 
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<body> 
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{body_content}0 
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</body> 
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caption_tag 
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::= 
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<caption> body_content </caption> 
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center_tag 
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::= 
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<center> body_content </center> 
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cite_tag 
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::= 
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<cite> text 
</cite> 
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code_tag 
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::= 
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<code> text 
</code> 
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colgroup_content 
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::= 
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{<col>}0 
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colgroup_tag 
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::= 
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<colgroup> 
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colgroup_content 
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content_style 
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::= 
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abbr_tag 
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acronym_tag 
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cite_tag 
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code_tag 
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dfn_tag 
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em_tag 
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kbd_tag 
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q_tag 
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strong_tag 
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var_tag 
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dd_tag 
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::= 
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<dd> flow 
</dd> 
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del_tag 
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::= 
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<del> flow 
</del> 
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dfn_tag 
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::= 
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<dfn> text 
</dfn> 
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dir_tag[b] 
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::= 
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<dir> 
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{li_tag} 
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</dir> 
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div_tag 
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::= 
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<div> body_content </div> 
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dl_content 
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::= 
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dt_tag dd_tag 
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dl_tag 
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::= 
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<dl> 
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{dl_content} 
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</dl> 
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dt_tag 
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::= 
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<dt> 
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text 
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</dt> 
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em_tag 
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::= 
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<em> text 
</em> 
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fieldset_tag 
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::= 
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<fieldset> 
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[legend_tag] 
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{form_content}0 
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</fieldset> 
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flow 
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::= 
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{flow_content}0 
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flow_content 
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::= 
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block 
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text 
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font_tag 
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::= 
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<font> style_text 
</font> 
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form_content[c] 
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::= 
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<input> 
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<keygen> 
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body_content 
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fieldset_tag 
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label_tag 
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select_tag 
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textarea_tag 
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form_tag 
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::= 
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<form> 
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{form_content}0 
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</form> 
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frameset_content 
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::= 
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<frame> 
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noframes_tag 
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frameset_tag 
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::= 
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<frameset> 
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{frameset_content}0 
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</frameset> 
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h1_tag 
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::= 
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<h1> text 
</h1> 
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h2_tag 
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::= 
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<h2> text 
</h2> 
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h3_tag 
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::= 
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<h3> text 
</h3> 
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h4_tag 
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::= 
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<h4> text 
</h4> 
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h5_tag 
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::= 
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<h5> text 
</h5> 
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h6_tag 
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::= 
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<h6> text 
</h6> 
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head_content 
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::= 
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<base> 
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<isindex> 
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<link> 
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<meta> 
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<nextid> 
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style_tag 
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title_tag 
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head_tag 
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::= 
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<head> 
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{head_content}0 
 | ||
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</head> 
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heading 
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::= 
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h1_tag 
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h2_tag 
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h3_tag 
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h4_tag 
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h5_tag 
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h6_tag 
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html_content 
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::= 
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head_tag body_tag 
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head_tag 
frameset_tag 
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html_document 
 | 
 
::= 
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html_tag 
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html_tag 
 | 
 
::= 
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<html> html_content </html> 
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i_tag 
 | 
 
::= 
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<i> text 
</i> 
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ilayer_tag 
 | 
 
::= 
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<ilayer> body_content </ilayer> 
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ins_tag 
 | 
 
::= 
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<ins> flow 
</ins> 
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kbd_tag 
 | 
 
::= 
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<kbd> text 
</kbd> 
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| 
 
label_content[d] 
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::= 
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<input> 
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body_content 
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select_tag 
 | |
| 
 
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textarea_tag 
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label_tag 
 | 
 
::= 
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<label> 
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{label_content}0 
 | ||
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</label> 
 | ||
| 
 
layer_tag 
 | 
 
::= 
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<layer> body_content </layer> 
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legend_tag 
 | 
 
::= 
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<legend> text 
</legend> 
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li_tag 
 | 
 
::= 
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<li> flow 
</li> 
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| 
 
listing_tag 
 | 
 
::= 
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<listing> literal_text </listing> 
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map_content 
 | 
 
::= 
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{<area>}0 
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| 
 
map_tag 
 | 
 
::= 
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<map> map_content 
</map> 
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| 
 
marquee_tag 
 | 
 
::= 
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<marquee> style_text </marquee> 
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| 
 
menu_tag[e] 
 | 
 
::= 
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<menu> 
 | 
| 
 
{li_tag}0 
 | ||
| 
 
</menu> 
 | ||
| 
 
multicol_tag 
 | 
 
::= 
 | 
 
<multicol> body_content </multicol> 
 | 
| 
 
nobr_tag 
 | 
 
::= 
 | 
 
<nobr> text 
</nobr> 
 | 
| 
 
noembed_tag 
 | 
 
::= 
 | 
 
<noembed> text 
</noembed> 
 | 
| 
 
noframes_tag 
 | 
 
::= 
 | 
 
<noframes> 
 | 
| 
 
{body_content}0 
 | ||
| 
 
</noframes> 
 | ||
| 
 
noscript_tag 
 | 
 
::= 
 | 
 
<noscript> text 
</noscript> 
 | 
| 
 
object_content 
 | 
 
::= 
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{<param>}0 
 | 
| 
 
body_content 
 | ||
| 
 
object_tag 
 | 
 
::= 
 | 
 
<object> object_content </object> 
 | 
| 
 
ol_tag 
 | 
 
::= 
 | 
 
<ol> 
 | 
| 
 
{li_tag} 
 | ||
| 
 
</ol> 
 | ||
| 
 
optgroup_tag 
 | 
 
::= 
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<optgroup> 
 | 
| 
 
{option_tag}0 
 | ||
| 
 
</optgroup> 
 | ||
| 
 
option_tag 
 | 
 
::= 
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<option> plain_text </option> 
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| 
 
p_tag 
 | 
 
::= 
 | 
 
<p> text 
</p> 
 | 
| 
 
physical_style 
 | 
 
::= 
 | 
 
b_tag 
 | 
| 
 
| 
 | 
 
bdo_tag 
 | |
| 
 
| 
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big_tag 
 | |
| 
 
| 
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blink_tag 
 | |
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font_tag 
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i_tag 
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s_tag 
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small_tag 
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span_tag 
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strike_tag 
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sub_tag 
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sup_tag 
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tt_tag 
 | |
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u_tag 
 | |
| 
 
pre_content 
 | 
 
::= 
 | 
 
<br> 
 | 
| 
 
| 
 | 
 
<hr> 
 | |
| 
 
| 
 | 
 
a_tag 
 | |
| 
 
| 
 | 
 
style_text 
 | |
| 
 
pre_tag 
 | 
 
::= 
 | 
 
<pre> 
 | 
| 
 
{pre_content}0 
 | ||
| 
 
</pre> 
 | ||
| 
 
q_tag 
 | 
 
::= 
 | 
 
<q> text 
</q> 
 | 
| 
 
s_tag 
 | 
 
::= 
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<s> text 
</s> 
 | 
| 
 
samp_tag 
 | 
 
::= 
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<samp> text 
</samp> 
 | 
| 
 
script_tag[f] 
 | 
 
::= 
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<script> plain_text </script> 
 | 
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select_content 
 | 
 
::= 
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optgroup_tag 
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option_tag 
 | |
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select_tag 
 | 
 
::= 
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<select> 
 | 
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{select_content}0 
 | ||
| 
 
</select> 
 | ||
| 
 
server_tag [g] 
 | 
 
::= 
 | 
 
<server> plain_text </server> 
 | 
| 
 
small_tag 
 | 
 
::= 
 | 
 
<small> text 
</small> 
 | 
| 
 
span_tag 
 | 
 
::= 
 | 
 
<span> text 
</span> 
 | 
| 
 
strike_tag 
 | 
 
::= 
 | 
 
<strike> text 
</strike> 
 | 
| 
 
strong_tag 
 | 
 
::= 
 | 
 
<strong> text 
</strong> 
 | 
| 
 
style_tag 
 | 
 
::= 
 | 
 
<style> plain_text </style> 
 | 
| 
 
sub_tag 
 | 
 
::= 
 | 
 
<sub> text 
</sub> 
 | 
| 
 
sup_tag 
 | 
 
::= 
 | 
 
<sup> text 
</sup> 
 | 
| 
 
table_cell 
 | 
 
::= 
 | 
 
td_tag 
 | 
| 
 
| 
 | 
 
th_tag 
 | |
| 
 
table_content 
 | 
 
::= 
 | 
 
<tbody> 
 | 
| 
 
| 
 | 
 
<tfoot> 
 | |
| 
 
| 
 | 
 
<thead> 
 | |
| 
 
| 
 | 
 
tr_tag 
 | |
| 
 
table_tag 
 | 
 
::= 
 | 
 
<table> 
 | 
| 
 
[caption_tag] 
 | ||
| 
 
{colgroup_tag}0 
 | ||
| 
 
{table_content}0 
 | ||
| 
 
</table> 
 | ||
| 
 
td_tag 
 | 
 
::= 
 | 
 
<td> body_content 
</td> 
 | 
| 
 
text 
 | 
 
::= 
 | 
 
{text_content}0 
 | 
| 
 
text_content 
 | 
 
::= 
 | 
 
<br> 
 | 
| 
 
| 
 | 
 
<embed> 
 | |
| 
 
| 
 | 
 
<iframe> 
 | |
| 
 
| 
 | 
 
<img> 
 | |
| 
 
| 
 | 
 
<spacer> 
 | |
| 
 
| 
 | 
 
<wbr> 
 | |
| 
 
| 
 | 
 
a_tag 
 | |
| 
 
| 
 | 
 
applet_tag 
 | |
| 
 
| 
 | 
 
content_style 
 | |
| 
 
| 
 | 
 
ilayer_tag 
 | |
| 
 
| 
 | 
 
noembed_tag 
 | |
| 
 
| 
 | 
 
noscript_tag 
 | |
| 
 
| 
 | 
 
object_tag 
 | |
| 
 
| 
 | 
 
physical_style 
 | |
| 
 
| 
 | 
 
plain_text 
 | |
| 
 
textarea_tag 
 | 
 
::= 
 | 
 
<textarea> plain_text </textarea> 
 | 
| 
 
th_tag 
 | 
 
::= 
 | 
 
<th> body_content 
</th> 
 | 
| 
 
title_tag 
 | 
 
::= 
 | 
 
<title> plain_text </title> 
 | 
| 
 
tr_tag 
 | 
 
::= 
 | 
 
<tr> 
 | 
| 
 
{table_cell}0 
 | ||
| 
 
</tr> 
 | ||
| 
 
tt_tag 
 | 
 
::= 
 | 
 
<tt> text 
</tt> 
 | 
| 
 
u_tag 
 | 
 
::= 
 | 
 
<u> text 
</u> 
 | 
| 
 
ul_tag 
 | 
 
::= 
 | 
 
<ul> 
 | 
| 
 
{li_tag} 
 | ||
| 
 
</ul> 
 | ||
| 
 
var_tag 
 | 
 
::= 
 | 
 
<var> text 
</var> 
 | 
| 
 
xmp_tag 
 | 
 
::= 
 | 
 
<xmp> literal_text </xmp> 
 |