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The padding property (CSS Reference)
Introduction
The padding property can be used to define the padding for
an element. To give all 4 borders different settings you have two
possibilities: The first one is to declare the padding in one definition
separated with a space – something like this:
padding: 10,20,30,40;
If you use it this way, then you have to follow some rules:
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Amount of paddings:
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Description:
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1 padding
(padding:10)
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If you use only one padding, then it will be used for all
four borders.
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2 padding s
(padding: 10,20)
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The first padding will be used for the top and bottom
border and the second one for the left and right border.
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3 padding s
(margin: 10,20,30)
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The first padding will be used for the top, the second for
left and right, and the third for the bottom border.
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4 padding s
(padding: 10,20,30,40)
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The first one will be used for the top, the second one for
right, the third one for bottom, and the fourth for the left border.
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The second option is to define the paddings with the
sub-properties of margin:
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Sub-Property:
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Description:
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padding-bottom
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Defines the bottom padding.
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padding -left
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Defines the left padding.
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padding -right
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Defines the right padding.
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padding -top
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Defines the top padding.
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Example
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>padding Demonstration</title>
<style type="text/css">
p.padding
{
padding: 20% 20%
20% 20%;
}
</style>
</head>
<body>
<h1><p>padding
demonstration</p></h1>
<p class="padding">This text is aligned with
the help of paddings</p>
</body>
</html>
Output

Values
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Name:
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Description:
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length
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The following values can be also used to define the
padding:
cm (centimeter)
em (ems)
inch (inches)
mm (millimeters)
pc (picas)
px (pixels)
pt (points)
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percentage
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This value can be used to define the padding with
percentages. You have to use the percentage sign %.
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