Finally, we setup the Viewport, which controls the viewable area of the browser.

最后，我们设置视图，用于浏览器可视区域的控制。

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This provides a nice wide viewable area for the tiles at various stages of the zoom process.

这提供一个不错的宽幕可视区域，用于变焦过程中各种场景中的贴片。

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The default behavior of Mobile Safari is to assume that the Web site is 980 pixels wide and shrink it by about one-third to fit in the viewable area of the iPhone.

Mobile Safari 的默认行为将假定 Web 站点的宽度为 980 像素，并且把它收缩三分之一以适应 iPhone 的可视区域。

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Despite having a 20.1-inch viewable area, the LCD2000 is slim and svelte--8 inches deep and 22 pounds.

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It is also important to note that screen sizes are measured diagonally and even a small increase can make a big difference in the viewable area of the screen.

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The 15-inch viewable diagonal screen is nearly comparable to a 17-inch conventional CRT monitor's true display area.

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