Padding Borders and Margin

outline-width

Specifies the width or thickness for an outline. An outline works similar to a border, except an outline doesn’t occupy any space, that is, it doest add to the width and height of an element. It is intended for highlighting an elements on the page.

Example

outline-width: 1.8em;

Browser support

FF1.5+, SA1.3+, OP9.2+

Values

em Relative length value. A em unit is equal to the font-size value of the element used.
px Pixel, a pixel unit represents a single dot on the screen.

Related properties

Can be used with..

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