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# Layout Area Attributes

Attributes that are specific to layout areas.

## Topics

### Constants

[`static let horizontalUnits: NSAccessibility.Attribute`](/documentation/AppKit/NSAccessibility-swift.struct/Attribute/horizontalUnits)

The units that the layout view uses for horizontal values (`NSString`).

[`static let verticalUnits: NSAccessibility.Attribute`](/documentation/AppKit/NSAccessibility-swift.struct/Attribute/verticalUnits)

The units that the layout view uses for vertical values (`NSString`).

[`static let horizontalUnitDescription: NSAccessibility.Attribute`](/documentation/AppKit/NSAccessibility-swift.struct/Attribute/horizontalUnitDescription)

The description of the layout view’s horizontal units (`NSString`).

[`static let verticalUnitDescription: NSAccessibility.Attribute`](/documentation/AppKit/NSAccessibility-swift.struct/Attribute/verticalUnitDescription)

The description of the layout view’s vertical units (`NSString`).


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