Symbols

hash mark (#) : Handling reserved and unsafe characters
- for RGB color values : The color attribute
- for fragment identifiers : The http document fragment
- for special characters : Inserting Special Characters
header <HEAD> tags : HTML Skeleton
header cells in tables : The colspan attribute
headers
- Content-type : The Multipart/Mixed-Media Type
- horizontal rules with : Using Rules in Headers and Footers
- refresh : Uniquely Refreshing
- Refresh
- - and other header fields : Combining Refresh with Other HTTP Header Fields
- in tables : Missing Features
headers in HTML documents
- Structure of an HTML Document
- The Document Header
heading <H#> tags
- Headings
- Headings
- allowed content with : Allowed Heading Content
- graphics in : Adding Images to Headings
headings
- side : Side Heads
- straddling multiple columns : Straddle Heads
HEIGHT attribute (<APPLET> tag) : The height and width attributes
HEIGHT attribute (<IMG> tag) : The height and width attributes
HEIGHT attribute (<MARQUEE> tag) : The height and width attributes
helper applications
- client-pull and : Pulling Non-HTML Content
- for referenced files : Referencing Audio, Video, and Images
hidden fields : Hidden Fields
history
- of the Internet : In the Beginning
- of World Wide Web : HTML and the World Wide Web
home directory in URLs : The http path
home pages : The Flow of Information
horizontal
- alignment
- - of table captions : The align attribute
- scrollbars : The scrolling attribute
- spacing around table cells : The <hspace> and <vspace> attributes
horizontal rules
- Horizontal rules
- Using Horizontal Rules
horizontal space around graphics : The hspace and vspace attributes
HotJava (Oracle) : Executable Applications
HotJava browser : Browser software
hotspots
- coordinates of : The coords attribute
- shapes of : The shape attribute
HREF attribute (<A> tag)
- Anchors
- The href attribute
HREF attribute (<AREA> tag) : The href attribute
HREF attribute (<BASE> tag) : The href attribute
HREF attribute (<LINK> tag) : The href attribute
HSPACE (horizontal space) attribute (<IMG> tag) : The hspace and vspace attributes
HSPACE attribute (<APPLET> tag) : The hspace and vspace attributes
HSPACE attribute (<MARQUEE> tag) : The hspace and vspace attributes
HSPACE attribute (<TABLE> tag) : The <hspace> and <vspace> attributes
HTML (Hypertext Markup Language) : HTML: What It Is
- DTD for : The HTML DTD
- extensions to
- - HTML Standards and Extensions
  - Nonstandard Extensions
- limitations of : Specific Limitations of HTML
- tag grammar : HTML Grammar
- text editors for
- - Word processor or HTML editor?
  - Writing Tools
- version 3.0 : HTML Standards and Extensions
HTML attributes
- HTML Embedded Tags
- The Syntax of a Tag
- ACTION (<FORM> tag) : The action attribute
- ALIGN (<APPLET> tag) : The align attribute
- ALIGN (<CAPTION> tag) : The align attribute
- ALIGN (<DIV> tag) : The align attribute
- ALIGN (<HR> tag) : The align attribute
- ALIGN (<IMG> tag) : The align attribute
- ALIGN (<MARQUEE> tag) : The align attribute
- ALIGN (<P> tag) : The align attribute
- ALIGN (heading tags) : The align attribute
- ALIGN (in table tags)
- - The align attribute
  - The align attribute
  - The align and valign attributes
- ALINK (<BODY> tag) : The link, vlink, and alink attributes
- ALT (<APPLET> tag) : The alt attribute
- ALT (<IMG> tag) : The alt attribute
- BACKGROUND (<BODY> tag) : The background attribute
- BEHAVIOR (<MARQUEE> tag) : The behavior, direction, and loop attributes
- BGCOLOR (<BODY> tag) : The bgcolor attribute
- BGCOLOR (<MARQUEE> tag) : The bgcolor attribute
- BGCOLOR (in table tags)
- - The bgcolor attribute
  - The bgcolor attribute
  - The bgcolor attribute
- BGPROPERTIES (<BODY> tag) : The bgproperties attribute
- BORDER (<IMG> tag) : The border attribute
- BORDER (<TABLE> tag)
- - The border attribute
  - Combining border, cellspacing, and cellpadding attributes
- BORDERCOLOR (in table tags)
- - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
- BORDERCOLORDARK (in table tags)
- - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
- BORDERCOLORLIGHT (in table tags)
- - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
  - The bordercolor, bordercolorlight, and bordercolordark attributes
- CELLPADDING (<TABLE> tag) : The cellpadding attribute
- CELLSPACING (<TABLE> tag)
- - The cellspacing attribute
  - Combining border, cellspacing, and cellpadding attributes
- CHECKED (<INPUT> tag)
- - Checkboxes
  - Radio Buttons
- CLEAR (<BR> tag) : The clear attribute
- CODE (<APPLET> tag) : The code attribute
- CODEBASE (<APPLET> tag) : The codebase attribute
- COLS (columns) (<FRAMESET> tag) : The <rows> and <cols> attributes
- COLS (columns) (<TEXTAREA> tag) : The rows and cols attributes
- COLSPAN (column span) (<TD> and <TH> tags) : The colspan attribute
- COMPACT (for list tags)
- - Compact unordered lists
  - Compact ordered lists
  - The <dir> Tag
  - The <menu> Tag
  - More compact definition lists
- CONTENT (<META> tag)
- - The content attribute
  - The Refresh Header Contents
- CONTROLS (<IMG> tag) : The controls attribute
- COORDS (coordinates) (<AREA> tag) : The coords attribute
- DIRECTION (<MARQUEE> tag) : The behavior, direction, and loop attributes
- DYNSRC (<IMG> tag) : The dynsrc attribute
- ENCTYPE (<FORM> tag) : The enctype attribute
- HEIGHT (<APPLET> tag) : The height and width attributes
- HEIGHT (<IMG> tag) : The height and width attributes
- HEIGHT (<MARQUEE> tag) : The height and width attributes
- HREF (<A> tag)
- - Anchors
  - The href attribute
- HREF (<AREA> tag) : The href attribute
- HREF (<BASE> tag) : The href attribute
- HREF (<LINK> tag) : The href attribute
- HSPACE (<APPLET> tag) : The hspace and vspace attributes
- HSPACE (<IMG> tag) : The hspace and vspace attributes
- HSPACE (<MARQUEE> tag) : The hspace and vspace attributes
- HSPACE (<TABLE> tag) : The <hspace> and <vspace> attributes
- HTTP-EQUIV (<META> tag)
- - The http-equiv attribute
  - Uniquely Refreshing
- ISMAP (<IMG> tag) : The ismap and usemap attributes
- ISMAP (image map) (<IMG> tag) : The ismap <img> attribute
- LEFTMARGIN (<BODY> tag) : The leftmargin attribute
- LINK (<BODY> tag) : The link, vlink, and alink attributes
- LOOP (<BGSOUND> tag) : The loop attribute
- LOOP (<IMG> tag) : The loop attribute
- LOOP (<MARQUEE> tag) : The behavior, direction, and loop attributes
- LOWSRC (<IMG> tag) : The lowsrc attribute
- MARGINHEIGHT attribute (<FRAME> tag) : The marginheight and marginwidth attributes
- MARGINWIDTH attribute (<FRAME> tag) : The marginheight and marginwidth attributes
- MAXLENGTH (<FORM> tag) : Conventional text fields
- METHOD (<A> tag) : The method attribute
- METHOD (<FORM> tag) : The method attribute
- METHODS (<LINK> tag) : The methods attribute
- MULTIPLE (<SELECT> tag) : The multiple attribute
- N (<NEXTID> tag) : The n attribute
- NAME (<A> tag)
- - Hyperlink Names and Navigation
  - The name attribute
- NAME (<APPLET> tag) : The name attribute
- NAME (<FORM> tag) : The <input> Tag
- NAME (<META> tag) : The name attribute
- NAME (<PARAM> tag) : The name and value attributes
- NAME attribute (<FRAME> tag : Frame Tags
- NAME attribute (<FRAME> tag)
- - The name attribute
  - Named Frame or Window Targets
- NOHREF (<AREA> tag) : The nohref attribute
- NORESIZE attribute (<FRAME> tag) : The noresize attribute
- NOSHADE (<HR> tag) : The noshade attribute
- NOWRAP (<TD> and <TG> tags) : The nowrap attribute
- PROMPT (<ISINDEX> tag) : The prompt attribute (Netscape only)
- REL (relationship) (<A> tag) : The rel and rev attributes
- REL (relationship) (<LINK> tag) : The rel and rev attributes
- REV (reverse relationship) (<A> tag) : The rel and rev attributes
- REV (reverse relationship) (<LINK> tag) : The rel and rev attributes
- ROWS (<FRAMESET> tag) : The <rows> and <cols> attributes
- ROWS (<TEXTAREA> tag) : The rows and cols attributes
- ROWSPAN (row span) (<TD> and <TH> tags) : The rowspan attribute
- SCROLLAMOUNT (<MARQUEE> tag) : The scrollamount and scrolldelay attributes
- SCROLLDELAY (<MARQUEE> tag) : The scrollamount and scrolldelay attributes
- SCROLLING attribute (<FRAME> tag) : The scrolling attribute
- SELECTED (<OPTION> tag) : The selected attribute
- SHAPE (<AREA> tag) : The shape attribute
- SIZE (<FORM> tag) : Conventional text fields
- SIZE (<HR> tag) : The size attribute
- SIZE (<SELECT> tag) : The size attribute
- SRC (<BGSOUND> tag) : The src attribute
- SRC (<IMG> tag) : The src attribute
- SRC (source) (<FRAME> tag) : The src attribute
- START (<IMG> tag) : The start attribute
- START (<OL> tag) : The start attribute
- TARGET (<A> tag) : The target attribute (Netscape only)
- TARGET (<BASE> tag) : The target attribute
- TARGET attribute (<A> tag)
- - Frame Tags
  - The target Attribute for the <a> Tag
- TARGET attribute (<BASE> tag) : The <base> Default Target
- TEXT (<BODY> tag) : The text attribute
- TITLE (<A> tag) : The title attribute
- TITLE (<LINK> tag) : The title attribute
- TOPMARGIN (<BODY> tag) : The topmargin attribute
- TYPE (for list tags)
- - Changing item bullets in unordered lists
  - Changing the numbering style in ordered lists
  - The type attribute
- URN (uniform resource name) (<A> tag) : The urn attribute
- URN (uniform resource name) (<LINK> tag) : The urn attribute
- USEMAP (<IMG> tag) : The ismap and usemap attributes
- USEMAP (image map) (<IMG> tag) : The usemap <img> Attribute
- VALIGN (<CAPTION> tag) : The valign attribute
- VALIGN (in table tags)
- - The valign attribute
  - The valign attribute
  - The align and valign attributes
- VALUE (<FORM> tag) : Conventional text fields
- VALUE (<OPTION> tag) : The value attribute
- VALUE (<PARAM> tag) : The name and value attributes
- VALUE (for list tags)
- - The value attribute
  - The <dir> Tag
  - The <menu> Tag
- VERSION (<HTML> tag) : The version attribute
- VLINK (<BODY> tag) : The link, vlink, and alink attributes
- VSPACE (<APPLET> tag) : The hspace and vspace attributes
- VSPACE (<IMG> tag) : The hspace and vspace attributes
- VSPACE (<MARQUEE> tag) : The hspace and vspace attributes
- VSPACE (<TABLE> tag) : The <hspace> and <vspace> attributes
- WIDTH (<APPLET> tag) : The height and width attributes
- WIDTH (<HR> tag) : The width attribute
- WIDTH (<IMG> tag) : The height and width attributes
- WIDTH (<MARQUEE> tag) : The height and width attributes
- WIDTH (<PRE> tag) : The width attribute
- WIDTH (in table tags)
- - The width attribute
  - The width attribute
- WRAP (<TEXTAREA> tag) : The wrap attribute
HTML documents
- Clients, Servers, and Browsers
- Anatomy of an HTML Document
- automation : Supporting Document Automation
- background graphics : The background attribute
- body content of : The <body> Tag
- boilerplates : Boilerplate HTML Documents
- citations in : The <cite> Tag
- comments in
- - Comments
  - Comments
- designing for audience : Design for Your Audience
- dynamic : Netscape Dynamic Documents
- filling areas : Resized and flood-filling images
- formatting : Content Versus Appearance
- frames in : Frames
- headers in
- - Structure of an HTML Document
  - The Document Header
- headings in
- - Headings
  - Headings
- home pages : The Flow of Information
- linked to self : Hyperlink Names and Navigation
- linking effectively : Creating Effective Links
- links in : Hyperlinks
- lists in : The <ul> Tag
- multicolumn pages : Multicolumn Pages
- multimedia in : Multimedia
- organizing via hyperlinks : Hyperlink Names and Navigation
- paragraphs : The <p> Tag
- paths for : The http path
- referenced files : Embedded Versus Referenced Content
- refreshing : Uniquely Refreshing
- relationships between : Establishing Document Relationships
- searchable : Creating Searchable Documents
- segmenting : Speeding Image Downloads
- software code in : The <code> Tag
- table of contents in : Linking Within a Document
- tables in : Tables
- text-only : When to Use Text
- titles for : HTML Skeleton
- titles in
- - with <A> tags : The title attribute
  - with <LINK> tag : The title attribute
- titles of : The <title> Tag
HTML tags
- embedding : HTML Embedded Tags
- formatting style for : Appearances Can Deceive
- grammar of : HTML Grammar
-  (comments)
- - Comments
  - Comments
- <A> (anchor)
- - Anchors
  - Embedded Versus Referenced Content
- <A> (anchor) tags : The <a> Tag
- <ADDRESS> tags : The <address> Tag
- <APPLET> : The <applet> Tag
- <AREA> : The <area> Tag
- <B> (bold) : Physical styles
- <B> (boldface) : The <b> Tag
- <BASE>
- - The <base> Header Element
  - The <base> Default Target
- <BASEFONT>
- - The <basefont> Tag
  - The <font> Tag
- <BGSOUND> tag : The <bgsound> Tag
- <BIG> (larger font) : The <big> Tag
- <BLINK>
- - The <blink> Tag
  - Trivial or Abusive?
- <BLOCKQUOTE> tags : The <blockquote> Tag
- <BODY>
- - HTML Skeleton
  - Structure of an HTML Document
  - Extensions to the <body> Tag
  - multiple-body bug : Beyond Extensions: Exploiting Bugs
- <BODY> tags : The <body> Tag
- <BR> (line break) tag : Paragraphs and line breaks
- <BR> (line break) tags : The <br> Tag
- <CAPTION> : The <caption> Tag
- <CENTER> tags : The <center> Tag
- <CITE> (citation) : The <cite> Tag
- <CODE> : Content-based text styles
- <CODE> (software code) : The <code> Tag
- <COMMENT> (for Explorer)
- - Ignored or Redundant Tags
  - Comments
- <DD> (definition)
- - The <dl> Tag
  - The <dd> Tag
- <DFN> (definition)
- - Content-based text styles
  - The <dfn> Tag
- <DIR> (directory list) tags
- - The <li> Tag
  - The <dir> Tag
- <DIV> (explicit division) tag : The <div> Tag
- <DL> (definition list) tags : Definition Lists
- <DT> (definition term) : The <dt> Tag
- <DT> (definition) : The <dl> Tag
- <EM> (emphasis)
- - Content-based text styles
  - The <em> Tag
- <FORM> : The <form> Tag
- <FRAME>
- - Frame Tags
  - The <frame> Tag
- <FRAMESET>
- - Frame Tags
  - Frame Layout
- <H1>, <H2>, ... (heading) tags
- - Headings
  - Headings
- <HEAD> : HTML Skeleton
- <HEAD> (header) : Structure of an HTML Document
- <HEAD> (header) tags : The <head> Tag
- <HR> (horizontal rule)
- - Horizontal rules
  - The <hr> Tag
- <HTML>
- - HTML Skeleton
  - Structure of an HTML Document
- <HTML> tags : The <html> Tag
- <I> (italic) : The <i> Tag
- <I> (italics)
- - HTML Embedded Tags
  - Physical styles
- <IMG> (graphics)
- - The <img> Tag
  - Mouse-Sensitive Images
- <INPUT> : Form Input Elements
- <ISINDEX> tag : The <isindex> Element
- <KBD> (keyboard text)
- - Content-based text styles
  - The <kbd> Tag
- <LI> (list item) : The <li> Tag
- <LINK>
- - The rel and rev attributes
  - The <link> Header Element
- <LISTING> tags : The <listing> Tag
- <MAP> : The <map> Tag
- <MARQUEE>
- - The <marquee> Tag
  - Title Marquee
- <MENU> (menu list) tags
- - The <li> Tag
  - Menu Lists
- <META>
- - The <meta> Header Element
  - Client-Pull Documents
- <NEXTID> : The <nextid> Header Element
- <NOBR> (no line break) : The <center> Tag
- <NOBR> (no line break) tag : The <nobr> Tag
- <NOFRAMES>
- - Frame Tags
  - The <noframes> Tag
- <OL> (ordered list) tags : The <ol> Tag
- <OPTION> : The <option> Tag
- <P> (paragraph break) tag : Paragraphs and line breaks
- <P> (paragraph break) tags : The <p> Tag
- <PARAM> (applet parameters) : The <param> Tag
- <PLAINTEXT> tags : The <plaintext> Tag
- <PRE> (preformatted text)
- - Preformatted text
  - Tables
- <PRE> (preformatted text) tags : The <pre> Tag
- <S> (strikeout) : The <s> Tag
- <SAMP> (literal text) : The <samp> Tag
- <SAMP> (sample text) : Content-based text styles
- <SELECT> : The <select> Tag
- <SMALL> (smaler font) : The <small> Tag
- <STRIKE> (strikeout) : The <strike> Tag
- <STRONG>
- - Content-based text styles
  - The <strong> Tag
- <SUB> (subscript) : The <sub> Tag
- <SUP> (superscript) : The <sup> Tag
- <TABLE> : The <table> Tag
- <TD> (table data) : The <td> and <th> Tags
- <TEXTAREA> : The <textarea> Tag
- <TH> (table header) : The <td> and <th> Tags
- <TITLE> : HTML Skeleton
- <TITLE> tags : The <title> Tag
- <TR> (table row) : The <tr> Tag
- <TT> (typewriter text)
- - Physical styles
  - The <tt> Tag
- <U> (underline) : The <u> Tag
- <UL> (unordered list) tags : The <ul> Tag
- <VAR> (variable name text) : The <var> Tag
- <VAR> (variable text) : Content-based text styles
- <WBR> (window line break) : The <center> Tag
- <WBR> (window line break) tag : The <wbr> Tag
- <XMP> (example) tags : The <xmp> Tag
- nesting : Proper and Improper Nesting
- quick reference for : HTML Tag Quick Reference
- slash (/) in : Start and End Tags
- start/end pairs : Starting and Ending Tags
- syntax of : The Syntax of a Tag
HTTP (Hypertext Transfer Protocol) : The Flow of Information
http servers : The http URL
http URLs : The http URL
HTTP-EQUIV attribute (<META> tag)
- The http-equiv attribute
- Uniquely Refreshing
httpd, server-push example for : Server-push example application for NCSA httpd
hyperlinks
- Hypertext Basics
- Creating Hyperlinks
- Creating Hyperlinks
- color of
- - The link, vlink, and alink attributes
  - Problems with background, text, and link colors
- to external files : Embedded Versus Referenced Content
- into frames : The src attribute
- graphics as
- inline : Inline References
- names of : Hyperlink Names and Navigation
- to non-HTML documents : Anchors Beyond HTML
- to same document
- - Hyperlink Names and Navigation
  - The http document fragment
- targeted
- using effectively : Creating Effective Links
hypertext links : Hyperlinks
- for especially large graphics : Speeding Image Downloads
Hypertext Markup Language : The Flow of Information
Hypertext Transfer Protocol (HTTP) : The Flow of Information
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