LayoutViewport Properties | 
The LayoutViewport type exposes the following members.
| Name | Description | |
|---|---|---|
| ClientHeight | 
            Height (CSS pixels), excludes scrollbar if present.
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| ClientWidth | 
            Width (CSS pixels), excludes scrollbar if present.
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| PageX | 
            Horizontal offset relative to the document (CSS pixels).
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| PageY | 
            Vertical offset relative to the document (CSS pixels).
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