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说明:

每厘米包含点的数量(dots per centimeter)
  • 普通屏幕通常包含96dpi,一般将2倍于此的屏幕称之为高分屏,即大于等于192dpi的屏幕,比如Mac视网膜屏就达到了192dpi(即2dppx),打印时一般会需要更大的dpi;

  • 1dppx = 96dpi

  • 1dpi ≈ 0.39dpcm

  • 1dpcm ≈ 2.54dpi

  • 1in = 2.54cm = 25.4 mm = 101.6q = 72pt = 6pc = 96px

示例代码:

@media screen and (min-resolution: 28dpcm) { ... }
@media print and (min-resolution: 118dpcm) { ... }

兼容性:

IEFirefoxChromeSafariOperaiOS SafariAndroid BrowserAndroid Chrome
6.0-8.02.0-3.44.0-28.03.1-8.115.0+3.2-8.12.1-4.4.418.0-29.0
9.0+3.5+29.0+29.0+

示例:

实例

<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title>dpcm_CSS参考手册_web前端开发参考手册系列</title>
<meta name="author" content="Joy Du(飘零雾雨), dooyoe@gmail.com, www.doyoe.com" />
<style>
@media screen and (min-resolution: 75.5dpcm) {
	.normal{display:none;}
}
@media screen and (min-resolution: 28.3dpcm) and (max-resolution: 75.4dpcm) {
	.retina{display:none;}
}
</style>
</head>
<body>
<p class="retina">视网膜屏</p>
<p class="normal">普通屏</p>
</body>
</html>
			

运行实例 »

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