Web Design for Beginner Web design tutorial Html Part-004

HTML Attributes

We have seen few HTML tags and their usage like heading tags <h1>, <h2>
paragraph tag <p> and other tags. We used them so far in their simplest form,
but most of the HTML tags can also have attributes, which are extra bits of
information.
An attribute is used to define the characteristics of an HTML element and is
placed inside the element's opening tag. All attributes are made up of two
parts: a name and a value:
 The name is the property you want to set. For example, the paragraph
<p> element in the example carries an attribute whose name is align,
which you can use to indicate the alignment of paragraph on the page.
 The value is what you want the value of the property to be set and
always put within quotations. The below example shows three possible
values of align attribute: left, center and right.
Attribute names and attribute values are case-insensitive. However, the World
Wide Web Consortium (W3C) recommends lowercase attributes/attribute
values in their HTML 4 recommendation.

Example

<!DOCTYPE html>
<html>
<head>
<title>Align Attribute Example</title>
</head>
<body>
<p align="left">This is left aligned</p>
<p align="center">This is center aligned</p>
<p align="right">This is right aligned</p>
</body>
</html>

Core Attributes

The four core attributes that can be used on the majority of HTML elements
(although not all) are:
 id
 title
 class
 style

The id Attribute

The id attribute of an HTML tag can be used to uniquely identify any element
within an HTML page. There are two primary reasons that you might want to
use an id attribute on an element:
 If an element carries an id attribute as a unique identifier it is possible
to identify just that element and its content.
 If you have two elements of the same name within a Web page (or style
sheet), you can use the id attribute to distinguish between elements
that have the same name.
We will discuss style sheet in separate tutorial. For now, let's use the id
attribute to distinguish between two paragraph elements as shown below.

Example

<p id="html">This para explains what is HTML</p>
<p id="css">This para explains what is Cascading Style Sheet</p>
The title Attribute
The title attribute gives a suggested title for the element. The syntax for
the title attribute is similar as explained for id attribute:
The behavior of this attribute will depend upon the element that carries it,
although it is often displayed as a tooltip when cursor comes over the element
or while the element is loading.

Example

<!DOCTYPE html>
<html>
<head>
<title>The title Attribute Example</title>
</head>
<body>
<h3 title="Hello HTML!">Titled Heading Tag Example</h3>
</body>
</html>

This will produce following result:
Now try to bring your cursor over "Titled Heading Tag Example" and you will
see that whatever title you used in your code is coming out as a tooltip of the
cursor.
The class Attribute
The class attribute is used to associate an element with a style sheet, and
specifies the class of element. You will learn more about the use of the class
attribute when you will learn Cascading Style Sheet (CSS). So for now you can
avoid it.
The value of the attribute may also be a space-separated list of class names.
For example:
class="className1 className2 className3"

The style Attribute
The style attribute allows you to specify Cascading Style Sheet (CSS) rules
within the element.

<!DOCTYPE html>
<html>
<head>
<title>The style Attribute</title>
</head>
<body>
<p style="font-family:arial; color:#FF0000;">Some text...</p>
</body>
</html>
This will produce following result:

At this point of time, we are not learning CSS, so just let's proceed without
bothering much about CSS. Here you need to understand HTML attributes
and how they can be used while formatting content.
Internationalization Attributes
There are three internationalization attributes, which are available for most
(although not all) XHTML elements.

 dir
 lang
 xml:lang

Previous Tutorial Html

Web Design for Beginner Web design tutorial Html Part-001
Web Design for Beginner Web design tutorial Html Part-002
Web Design for Beginner Web design tutorial Html Part-003

The dir Attribute

The dir attribute allows you to indicate to the browser the direction in which
the text should flow. The dir attribute can take one of two values, as you can
see in the table that follows:

Value	Meaning
ltr	Left to right (the default value)
rtl	Right to left (for languages such as Hebrew or Arabic that are read right to left)

Example

<!DOCTYPE html>
<html dir="rtl">
<head>
<title>Display Directions</title>
</head>
<body>
This is how IE 5 renders right-to-left directed text.
</body>
</html>

This will produce following result:

When dir attribute is used within the <html> tag, it determines how text will
be presented within the entire document. When used within another tag, it
controls the text's direction for just the content of that tag.

The lang Attribute

The lang attribute allows you to indicate the main language used in a
document, but this attribute was kept in HTML only for backward
compatibility with earlier versions of HTML. This attribute has been replaced
by the xml:lang attribute in new XHTML documents.
The values of the lang attribute are ISO-639 standard two-character language
codes.
Example

<!DOCTYPE html>
<html lang="en">
<head>
<title>English Language Page</title>
</head>
<body>
This page is using English Language
</body>
</html>

The xml:lang Attribute

The xml:lang attribute is the XHTML replacement for the lang attribute. The
value of the xml:lang attribute should be an ISO-639 country code as
mentioned in previous section.

Generic Attributes

Here's a table of some other attributes that are readily usable with many of
the HTML tags.
Attribute Options Function
align right, left, center Horizontally aligns tags
valign top, middle, bottom Vertically aligns tags within an
HTML element.
bgcolor numeric, hexadecimal, RGB
values--Places a background color
behind an element
background URL Places a background image
behind an element

Attribute	Options	Function
align	right, left, center	Horizontally aligns tags
valign	top, middle, bottom	Vertically aligns tags within an HTML element.
bgcolor	numeric, hexadecimal, RGB values	Places a background color behind an element
background	URL	Places a background image behind an element
id	User Defined	Names an element for use with Cascading Style Sheets.
Class	User Defined	Classifies an element for use with Cascading Style Sheets.
width	Numeric Value	Specifies the width of tables, images, or table cells.
Height	Numeric Value	Specifies the height of tables, images, or table cells.
Title	User Defined	"Pop-up" title of the elements.

Featured post

How to get 1000 up Visitor per video on your Youtube channel Make Money part 2