how we can set box-shadow Property in html

div
{
box-shadow: 10px 10px 5px #888888;
} 

Browser Support

The box-shadow property is supported in IE9+, Firefox 4, Chrome, Opera, and Safari 5.1.1.
Safari supports an alternative, the -webkit-box-shadow property.

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Definition and Usage

The box-shadow property attaches one or more drop-shadows to the box.

Default value:	none
Inherited:	no
Version:	CSS3
JavaScript syntax:	object.style.boxShadow="10px 10px 5px #888888"

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Syntax

box-shadow: h-shadow v-shadow blur spread color inset;

Note: The box-shadow property attaches one or more drop-shadows to the box. The property is a comma-separated list of shadows, each specified by 2-4 length values, an optional color, and an optional inset keyword. Omitted lengths are 0.

Value	Description	Play it
h-shadow	Required. The position of the horizontal shadow. Negative values are allowed	Play it »
v-shadow	Required. The position of the vertical shadow. Negative values are allowed	Play it »
blur	Optional. The blur distance	Play it »
spread	Optional. The size of shadow	Play it »
color	Optional. The color of the shadow. Look at CSS Color Values for a complete list of possible color values	Play it »
inset	Optional. Changes the shadow from an outer shadow (outset) to an inner shadow	Play it »