How do you restrict a FORM to create it only in a fixed area FORM in mobile?

请问怎样限制一个FORM只在一个创建它的FORM中固定的区域内可移动？

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By displaying all results in a fixed area, users can navigate through all the records by simply scrolling.

通过在固定区域中显示所有结果，用户仅需上下滚动即可浏览所有记录。

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Like desktop, mobile computer want to access the same network and share the same resource and service, and that not limitation to some fixed area.

像台式机用户一样，移动计算用户希望接入同样的网络，共享资源和服务，而不局限于某一固定区域。

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It comes as the long-term future of fixed cameras in the area is considered and follows a 50% reduction nationally in road safety budgets last year.

BBC: West Midlands fixed speed cameras switched off

Morgan Stanley is, by contrast, an also-ran in fixed income, a crucial area these days that includes credit, commodities and rates.

ECONOMIST: Morgan Stanley

Unlicensed National Information Infrastructure (U-NII) devices today operate in 555 megahertz of spectrum in the 5 GHz band, and are used for short range, high speed wireless connections including Wi-Fi enabled local area networks and fixed outdoor broadband transceivers used by wireless Internet service providers to connect smart phones, tablets and laptops to the broadband network.

ENGADGET: FCC proposal hopes to grow WiFi spectrum by 35 percent, reduce hotspot congestion