Specifies the minimum width of the viewport that is used to set the size of the initial containing block

]]> Specifies the maximum width of the viewport that is used to set the size of the initial containing block.

]]> This is a shorthand property for setting both min-width and max-width. One <viewport-length> value will set both min-width and max-width to that value. Two <viewport-length> values will set min-width to the first and max-width to the second.

]]> Specifies the minimum height of the viewport that is used to set the size of the initial containing block

]]> Specifies the maximum height of the viewport that is used to set the size of the initial containing block.

]]> This is a shorthand property for setting both min-height and max-height. One <viewport-length> value will set both min-height and max-height to that value. Two <viewport-length> values will set min-height to the first and max-height to the second.

]]> Specifies the initial zoom factor for the window or viewing area. This is a magnifying glass type of zoom. Interactively changing the zoom factor from the initial zoom factor does not affect the size of the initial or the actual viewport.

]]> Specifies the smallest allowed zoom factor. It is used as input to the constraining procedure to constrain non-‘auto’ ‘zoom’ values, but also to limit the allowed zoom factor that can be set through user interaction. The UA should also use this value as a constraint when choosing an actual zoom factor when the used value of ‘zoom’ is ‘auto’.

]]> Specifies the largest allowed zoom factor. It is used as input to the constraining procedure to constrain non-‘auto’ ‘zoom’ values, but also to limit the allowed zoom factor that can be set through user interaction. The UA should also use this value as a constraint when choosing an actual zoom factor when the used value of ‘zoom’ is ‘auto’.

]]> Specifies if the zoom factor can be changed by user interaction or not.

]]> This property is used to request that a document is displayed in portrait or landscape mode. For a UA/device where the orientation is changed upon tilting the device, an author can use this property to inhibit the orientation change.

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