The majority of desktop and laptop screens nowadays have a width greater than the height. The screen is "wide" not "tall." Smart phones have done something rather cool by enabling the orientation of the phone to influence how the content is presented.The majority of desktop and laptop screens nowa
阅读背景：
CSS媒体查询高度大于宽度，反之亦然（或如何用JavaScript模仿）
来源：互联网
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