css自适应代码-iphone端

@media (device-height:480px) and (-webkit-min-device-pixel-ratio:2) {/* 兼容iphone4/4s */}
@media (device-height:568px) and (-webkit-min-device-pixel-ratio:2) {/* 兼容iphone5 */
}
@media (device-width:375px) and (-webkit-min-device-pixel-ratio:2) {/* 兼容iphone 6 */
}