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Marks, Orphans, and More Style Sheet Properties

If you're looking for a thorough resource on style sheet properties, you've come to the right place. This article, the seventh part of a series, covers marks, orphans, and more. It is excerpted from chapter four of Dynamic HTML: The Definitive Reference, Third Edition, written by Danny Goodman (O'Reilly; ISBN: 0596527403). Copyright © 2006 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

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By: O'Reilly Media
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October 11, 2007
  1. · Marks, Orphans, and More Style Sheet Properties
  2. · Moz border radius
  3. · Orphans
  4. · Outline-offset

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Marks, Orphans, and More Style Sheet Properties - Orphans
(Page 3 of 4 )


IE 5(Mac) NN n/a Moz n/a Saf n/a Op 7 CSS 2

Inherited: Yes

Sets the minimum number of lines of the start of a paragraph that must be visible at the bottom of a page where a page break occurs. See the widows property for lines to be displayed at the top of a page after a page break.

CSS Syntax

orphans: lineCount

Value                  An integer of the number of lines.

Initial Value       2

Applies To           Block-level elements .

Object Model Reference


IE 5(Mac) NN n/a Moz 1.8.1 Saf 1.2 Op 7 CSS 2

Inherited: No

This is a shorthand property for setting the width, style, and/or color of all four edges of an outline around an element in one assignment statement. Properties that you donít explicitly set with this property assume their initial values.

An outline differs from a border in two primary ways. First, an outline does not occupy space in the CSS box model. Rather, the outline simply hovers atop the element, drawn just beyond the border rectangle. Second, CSS does not restrict an outline to be rectangular, allowing an outline to follow the irregular outline of an unjustified paragraph, for example. IE 5 for the Macintosh draws only rectangular outlines. For earlier versions of Mozilla, a full set of CSS2 outline properties is available with the -moz- prefix (e.g.,
-moz-outline-color ), as well as further proprietary extensions for outline radius corners similar to the
-moz-border-radius property.

CSS Syntax

outline: border-color || border-style || outline-width


Value                      See the respective properties in the following sections.

Initial Value            None.

Example         blockquote {outline: darkred ridge 5px}

Applies To               All elements.

Object Model Reference


IE 5(Mac) NN n/a Moz 1.8.1 Saf 1.2 Op 7 CSS 2

Inherited: No

Controls the color of an outline around an element.

CSS Syntax

outline-color: color


A CSS color value. One value controls all sides of the outline. The CSS specification also calls for a constant called invert, which performs an algorithmic inversion of the background color, but this value is not supported in IE 5 Mac.

Initial Value

In IE 5 for Macintosh, black. The CSS2 specification suggests invert as a default.


h2 {outline-color: salmon}
div {outline-color: rgb(0,0,255)}

Applies To           All elements.

Object Model Reference


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