
30. An introduction to HTML
This section provides a short introduction to the HTML language. It describes HTML elements and
explain how to use them.
30.1. Information types in HTML
HTML 4.0 (Strict) provides elements to denote certain types of information. Although there is a default
way each element type is presented, it is possible to use style sheets to change the presentation of any
element. The types of information that can be represented by HTML elements are:
Headings
There are six levels of headings in HTML, which should be used to mark page or topic headings in
order of their importance.
Lists
HTML provides two simple list types:
1. numbered lists (such as this one)
2. unordered lists.
It also provides for lists of terms and definitions
About the author
A special element is provided for contact information about the author of an HTML page.
Definitions
These can be marked as an inline definition (i.e. defined in a normal paragraph) or in a list of terms
and definitions. This list of information types is a definition list itself. It is also possible to use the
value glossary in the rel attribute of a link, if that link is to a definition. In Amaya, the Links and
Structure views include any rel attributes on links.
Quotations
These can be marked inline or as blocks. In each case it is possible to mark the source of the
quotation using the cite element or the cite attribute
Sample input, output, computer code
Elements are provided for samples of computer code, variables, text to be entered and
sample output.
Abbreviations and acronyms
Elements are available to denote abbreviations and acronyms.
Insertions and Deletions
There are elements to mark text that has been inserted, or should be deleted (This is useful for
collaborative editing document history).
Emphasis
HTML provides two levels of emphasis: ordinary emphasis and strong emphasis.
30.2. HTML document structure
HTML documents are fairly flat in structure - rather than having sections that contain subsections,
division of text is usually marked by different level heading elements which are alongside paragraph and
other block elements.
30. An introduction to HTML
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