//iphoneX、iphoneXs
@media only screen and (device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3) {
}
即: 设备屏幕可见宽度为375px， 可见高度为812px及设备像素比为3
//iphone Xs Max
@media only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio:3) {
}
//iphone XR
@media only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio:2) {
}
//横屏
@media all and (orientation : landscape) {
}
//竖屏
@media all and (orientation : portrait){
}
标签：CSS3,ratio,iPhoneX,MAX,width,only,media,device,pixel
来源： https://www.cnblogs.com/Miracle-ZLZ/p/10685228.html
