iPhone5 iPhone6 iPhone6Plus iPad设备 media query（媒体查询）代码.
@media screen and (device-aspect-ratio: 2/3) {}
@media screen and (device-aspect-ratio: 40/71) {}
@media screen and (device-aspect-ratio: 667/375) {}
@media screen and (device-aspect-ratio: 16/9) {}
@media screen and (device-aspect-ratio: 3/4) {}
原文：http://www.cnblogs.com/beiz/p/5666159.html