DevGuru CSS2: outline-width

PROPERTY: outline-width

outline-width : thin | medium | thick | length

Compatibility: Currently not supported by any browser
Version: Level 2
Inherited: No

The outline-width property sets the physical width of the outline.

An outline is a line drawn around an element with the purpose of making that element stand out (i.e., become more noticeable on a page). You can set the color, style, and width of the line. The outline is drawn outside of the border edge of the element. Therefore, an element can have both a border and an outline. Unlike a border, an outline does not have to have a rectangular shape.

length

The length value specifies the width of the outline and can be in any of the following seven units. Use the abbreviation.

Length	Abbrev.
centimeters	cm
ems	em
inches	in
millimeters	mm
picas	pc
pixels	px
points	pt

medium

The medium value creates a medium width outline.

thick

The thick value creates a thick width outline.

thin

The thin value creates a thin width outline.

Code:
img
{
outline-color: orange
outline-style: solid
outline-width: medium
}