An NSNumber containing an integer (default 0) representing the number of spaces per level by which to indent certain nested HTML elements.
Available in Mac OS X v10.4 and later.

Declaration Syntax
public static readonly NSString NSPrefixSpacesDocumentAttribute
Public Shared ReadOnly NSPrefixSpacesDocumentAttribute As NSString
public:
static initonly NSString^ NSPrefixSpacesDocumentAttribute

Version Information
- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)
Assembly:
Monobjc.AppKit (Module: Monobjc.AppKit)