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In HTML document, a tag name begins with an opening angular bracket (<) and ends with
closing angular bracket (>). For example,
<TagName> content </TagName>
Opening tag Closing tag
Both opening and closing tags are the same. The only difference is that the closing tag contains a
forward slash in front of the tag name. Most of the tags in HTML have opening and closing tags.
A combination of the opening tag, content, and closing tag is called an element.
The HTML tags can be categorised as:
Container Tags: The tags that have both opening and closing tags are called Container Tags.
For example <B> ...... </B>
<HEAD> ...... </HEAD>
Empty Tags: Empty tags contain only the opening tag. They do not have a closing tag. These
tags do not enclose any data.
For example <BR>, <HR>, etc.
HTML tags can also be further classified as:
Block Level Tags: The block level tags take up the full width available and by default begin
on a new line. Some of the block level tags are Paragraph <P>, headings <H1> to <H6>,
Horizontal Rule <HR>, etc.
Text Level Tags: The text level tags are used to mark up parts of the text. These tags do not
start with a new line. Some of the text level tags are Bold <B>, Superscript <SUP>, Italic <I>,
Subscript <SUB>, etc.
Nesting of Tags
Nesting of tags means that you can start a new tag before closing the previous tag. The only
point to remember is that tags are nested on the LIFO principle, that is, Last In First Out. This
means that the tag that has been opened last needs to be closed first.
Attribute
An attribute is a property that provides some additional information about a tag. It enhances the
functionality of a tag. It is always specified inside the opening tag. All attributes consist of two
parts—a name and a value.
The ‘name’ is the property that you want to set.
The ‘value’ is what you want for the respective property.
If HTML is a canvas and you are an artist, how would you design web pages
and layout to to express your creativity and style?
HTML—An Introduction 97

