Documented Features

HTML document structure
header information
body of document

Document structure

HTML documents have two distinct sections: The header and the body:

  <!DOCTYPE HTML PUBLIC "+//ISBN 82-7640-037::WWW//DTD HTML//EN//2.0" "html.dtd">
  <html>
  <head>
    header information
    <meta .......>
    <title>title of document
  </head>
  <body>
    This is where the document really fits
  </body>

The first line shown above is not normally included but defines the SGML DTD being used.

Header information

<HEAD>...</HEAD>
This can contain the following tags:
- <BASE HREF="any URL">
  This can be used to record the documents URL
- <ISINDEX>
  Indicates to the browser that the whole document is an index document
- <LINK HREF="url" REL="next url" REV="previous url">
```
   or NAME=""
   or TITLE=""
   or URN=""
   or METHODS=""
```
  Indicates a relationship between the document and some other object
- <NEXTID N="a12">
  Used to generate a unique identifier
- <META HTTP-EQUIV=" " CONTENT=" "> or NAME=" "
  gives information taht appears in the HTTP headers (such as the expiry date)
  typical HTTP-EQUIVs are 'Expires', 'Keywords', 'Reply-To'. You should be careful not to use information that will be provided by the server (date, server name, last modified date, etc.).
  You can specify the NAME attribute and most servers will attempt to determine the equiv from the type of content (not always successfully).

HTML body

<A href="[protocol://][hostname/]name">link</a>
Makes a hypertext link to the named item. If the protocol is missing, The HTML browser will assume file:. If the hostname is missing, the HTML browser will assume that the link is to the same host as the current URL.
Although Mosaic doesn't care whether the name is quoted, this behaviour can not be guaranteed for all HTML browsers.
- <A name=name>...</A>
  Sets a tag in your document which can be href'd back to. Click here to go to the end of the document
- <A href="name">...</a>
  This makes a link to the named file. eg:
```
     link to a text file
```
  If the leading "/" is omitted, the named file will be assumed to be relative to the current URL.
  Your browser will recognise HTML files automatically, provided that the file has a ".html" extension [".htm" for Windoze].
  Note Relative references can't be used when imagemaps are used
  - <A href="#name">...</a>
    A hash means that the link is to a tag within the currently loaded document.
```
     link to the top of this file
```
  - <A href="news:newsgroup">...</a>
    Connects to the news-server taken from the environment variable NNTP_SERVERand reads the newsgroup.
```
     link to www newsgroup
     link to all newsgroups
```
    This use of the environment variable guarantees that a local nntp server will be used. You may specify a specific news server. Make sure it can be accessed by all the people likely to read the URL.
```
     link to specific news server
```
  - <A href="wais:name">...</a>
    connects to a wais server.
```
     link to wais
```
  - <A href="ftp:name">...</a>
    connects to a ftp server.
```
     link to ftp at Novell Germany
```
  - <A href="gopher:name">...</a>
    connects to a gopher server.
```
     link to novell gopher
```
  - <A href="http:name">...</a>
    with http: the file is somewhere else on the net.
- <address>...</address>
  Seems to just set italic text, but is meant to show the author of the document.
  my_document / me / me@me.com
- <app ...>
  see hot java.
- <blockquote>...</blockquote>
  formats text like so
  
  this is a block quote, this is a block quote,this is a block quote, this is a block quote, this is a block quote,this is a block quote, this is a block quote, this is a block quote,this is a block quote, this is a block quote, this is a block quote,this is a block quote,
  See what I mean? it should leave white space before and after it.
<b>...</b>
sets bold font
<base>
No information is currently available on this tag. It has been suggested that this can be used to allow documents accessed through imagemaps to have relative URLs.
<br>
breaks the line
and carries on to the next line.
<cite>...</cite>
cites the text in a predefined font. This font may be set up as being italic.
<code>...</code>
this sets the font to be fixed width.
Inserts a comment into the document. Must not contain any tags nested within it. Comments do not affect the flow of text.
Earlier versions of mosaic will recognise the following as a comment.
```
<! comment body  >
```
<dfn>...</dfn>
A text style used for definitions: eg: "definitions".
<dir [compact]>
This should display the items going across the page.
```
  <dir>

  <li>item<li>item
  <li>item
  </dir>
```
item1
item2
item3
item4
item5
NOTE but doesn't.
<dl [compact]>...</dl>
Description list
```
  <DL>
  <DT> description 1
  <DD> blah blah ....
  <DT> description 2
  <DD> waffle waffle ....
  </DL>
```
is formatted to

description 1
blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah
description 2
waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle waffle
<dt>
Description list item title as used above
<dd>
Description list item details as used above
<em>...</em>
sets emphasized font
<form>.....</form>
Put together collections of
```
inputs

 
```
<i>...</i>
sets italic font
<kbd>
Formats the enclosed text in a similar style as used in manuals when the user is asked to provide input. eg: help
<h1>...</h1>

Header level 1
<h2>...</h2>

Header level 2
<h3>...</h3>

Header level 3
<h4>...</h4>

Header level 4
<h5>...</h5>

Header level 5
<h6>...</h6>

Header level 6
<hr>
Places a horizontal line between the lines of text.
<img>
<IMG SRC="image.gif">
displays an . By default the bottom of the image is aligned with the bottom of the text. This can be changed using the parameter ALIGN
<IMG SRC="image.gif" ALIGN=top>
displays the with the top aligned.
<img SRC="image.gif" ALIGN=middle>
displays the with the middle aligned.
This picture: will appear if the specified picture can't be found
<img SRC="image.gif" alt="text">
will display the text in a text environment.
All tags in HTML have a corresponding terminator. For <IMG>, its terminator is technically </IMG>. It is probably best not to use this terminator as recent versions of Mosaic interpret </IMG> as an in-line image that doesn't exist.
Note the image name should be quoted. Although Mosaic may not care whether quotes are present, this behaviour can not be guaranteed in other other HTML browsers.
<input NAME=name [value=string] [Type =type] [SIZE=x,y] [checked] ALIGN=align>
Input fields
<li>
List items (as used above)
<menu>
This is a list of smaller paragraphs.
```
  <menu [compact]>

  <li>item
  <li>item
  <li>item
  </menu>
```
This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1, This is menu item 1.
This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2, This is menu item 2,
This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3, This is menu item 3,

NOTE The COMPACT flag may not be implemented on some browsers.

<ol>

numbered lists

<ol>
<li>  item
<ol>
<li>  item
</ol>
<li>  item
<li>  item
<li>  item
</ol>

which looks like

item
1. item
item
item
item

<option [value="text"] [selected]>
is used within <SELECT>.

         pre-formatted       text,   retains spaces and
	       line feeds

an optional parameter width=n can be given.

<p>
A new paragraph
starts here
<samp>...</samp>
a sequence of literal characters eg: &%$*&&&(^_+_)(.
<strong>...</strong>
sets stronger font
<strike>
It "~~strikes out~~" the selected text
<title>...</title>
sets the title of the document
<tt>...</tt>
sets fixed width font

Bullet-ed lists.

<ul>   
<li>   list element 1.1
<ul>   
<li>   list element 2.1
</ul>  
<li>   list element 1.2
<li>   list element 1.3
<li>   list element 1.4
</ul>

which looks like

list element 1.1
- list element 2.1
list element 1.2
list element 1.3
list element 1.4

<var>...</var>
Indicates that the enclosed text is the name of a variable.
<meta .....>
Lives in the head section of html documentation and ? e.g

<meta http-equiv="Refresh" content="time">
refreshes the current url after time seconds, getting a new version from the server.
<meta http-equiv="Refresh" content="time; URL=url>
after time seconds, the specified url is fetched by your browser the server.

This is the end of the document

click here to go back to the backhere tag.

Documented Features

Document structure

Header information

HTML body

Header level 1

Header level 2

Header level 3

Header level 4

Header level 5

Header level 6

This is the end of the document