iPhone CSS media query（媒体查询）

iPhone5  iPhone6  iPhone6Plus iPad设备 media query（媒体查询）代码.

iPhone < 5:

@media screen and (device-aspect-ratio: 2/3) {}

iPhone 5:

@media screen and (device-aspect-ratio: 40/71) {}

iPhone 6:

@media screen and (device-aspect-ratio: 667/375) {}

iPhone 6Plus:

@media screen and (device-aspect-ratio: 16/9) {}

iPad:

@media screen and (device-aspect-ratio: 3/4) {}