Database Reference
In-Depth Information
HyperText Markup Language (HTML)
HTML is a simple language for marking up and tagging a document so that it can
be published, that is, made available on the Web. It is known as a markup language
because you can add marks to regular text; these marks carry special meanings for
a Web browser indicating how the document must be formatted and presented. The
flexibility and strength of HTML come from its being platform-independent.
HTML uses tags to mark the structure of a document. The label of a tag is
enclosed with the “<”and“>” characters. For example, <HEAD> is a tag indicating
the start of the page heading. Each structure begins and ends with a tag. The heading
structure begins with the <HEAD> tag and ends with the </HEAD> tag.
Parts of an HTML Document
Without going into too much detail, let us quickly
review the parts of an HTML document. The document consists of elements that
form its structure.
Head Elements
These are used to indicate the properties of the whole document,
such as title, links denoting connections to other documents, and the base URL of
the document. This element is not displayed to the user as part of the document but
contains information about the document that is used by browsers.
Example:
Selected Notes of Databases and the Web
Body Elements
These are used to indicate the text in the body of the
document. Unlike the head elements, the body elements are displayed by browsers.
There are many different body elements. Just a few samples of body elements
follow.
Headings
Standard HTML supports up to six levels of headings.
Example:
<H2>DBMS-Web Integration</H2>
Anchors
These are used to mark the start and end of hypertext links.
Example:
<A HREF=
http://www.wiley.com/author/instructions.html
> </A>
Paragraph marks
These are used to define paragraph breaks.
Example:
The paragraph mark defines a page break. It is placed at the end of a
paragraph. <P>
Line breaks
These are used to indicate the start of a new line.
Example:
The HTML School<BR>
100 Main Street<BR>
Anytown, XX 12345<BR>
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