Desktop computers have two types of viewports: a visual viewport and a layout viewport.

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Desktop computers typically do not distinguish between a visual viewport and a layout viewport in the same way mobile devices do. The concept of visual and layout viewports primarily applies to mobile browsing, where the visual viewport refers to the area of the webpage that is currently visible to the user, and the layout viewport is the area that the browser lays out the webpage in, which can be larger than the visual viewport.

Desktop Computers Have Two Types of Viewports: a Visual Viewport